Write a Javascript program find the sum of natural numbers from n = 11 to m = 111. Also display the sum in the output.

In JavaScript, how can you validate a user’s input to make sure it is both a number and between 20 and 100?

Write a program that asks a user to input the height of triangle and draw a triangle that has the following pattern If the user enter height as 4 Then the triangle output is 1 1 2 1 2 3 1 2 3 4 We make the following assumptions There is no space between the margin and 1 There is no space after the last number on every line There is one space between numbers on every line • There is no newline at the end of last line the height of the triangle is an integer between 1 and 9

Using python, please explain 1: A positive integer greater than 1 is said to be prime if it has no divisors other than 1 and itself. A positive integer greater than 1 is composite if it is not prime. Write a program that asks the user to enter an integer greater than 1, then displays all of the prime numbers that are less than or equal to the number entered  The program should work as follows: Once the user has entered a number, the program should populate a list with all of the integers from 2 up through the value entered. The program should then use a loop to step through the list. The loop should pass each element to a function that displays the element whether it is a prime number.