(a) Design a system that computes the sum of three 8-bit numbers. First build a behavioral description, then a structural description that uses one or more 8-bit adders from the library. Finally, write a testbench that tests both modules.

Use the correct Syntax In python  You just started your summer internship with old jalopy auto Rentals based in Lenior. North Carolina. You will be working in a large development team in the process of building the firm's first online reservation system. your first assignment is to build the components that will check the age of the customer and then assign them a car. you will be building the business logic classes, so you do not have to worry about the forms of communicating with the user or data access classes to communicate with the database. To test your classes, you will use them in a test application. The requirements for your classes and the testing application are as follows: -You will design and build 2 components of the online reservation system(ORS). There will be one class to represent customers and another to represent vehicles. -Each class should have at least 2 members and 2 methods -The ORS will need to be able to check to make sure the customer in question is at least…

PLEASE USE C PROGRAMMING TO CODE THIS PROBLEM. EXPLAIN the logic with us of a diagram if possible, or clear enough that i can write this code if I was to ever come across a problem like it again Description Given a board with N rows and M columns, the rows are numbered from 1 to N from top to bottom, and the columns are numbered from 1 to M from left to right. Each element has one diagonal wall which either runs from top-left corner to bottom-right corner, or runs from top-right corner to bottom-left corner. Now given Q queries, you have to output which column the ball will fall out at the bottom row if you put it on top of the board at specific column. (The ball will naturally fall down due to gravity.)   The following figure is a sample. If you drop the ball at column 2, the ball will fall out at the left side. If you drop the ball at column 5, the ball will be stuck in the board. If you drop the ball at column 3, the ball will eventually fall out at column 2.   Input First line…

You must use one other model (math/random).

Consider the following skeletal C program: void fun1(void); /* prototype */void fun2(void); /* prototype */void fun3(void); /* prototype */void main() { int a, b, c; . . .}void fun1(void) { int b, c, d; . . .}void fun2(void) { int c, d, e; . . .}void fun3(void) { int d, e, f; . . .}Given the following calling sequences and assuming that dynamic scoping is used, whatvariables are visible during the execution of the last function? Include with each visible variablethe name of the function in which it was defined.a. main calls fun1; fun1 calls fun2; fun2 calls fun3.b. main calls fun1; fun1 calls fun3.c. main calls fun2; fun2 calls fun3; fun3 calls fun1.d. main calls fun3; fun3 calls fun1.e. main calls fun1; fun1 calls fun3; fun3 calls fun2.     Consider the following program, written in JavaScript-like syntax: // main programvar x, y, z;function sub1() {var a, y, z;. . .}function sub2() { var a, b, z; . . .}function sub3() { var a, x, w; . . .}Given the following calling sequences and…