Label the elements of three-by-five two-dimensional array sales to indicate the order in which they are set to zero by the following program segment: for  ( var row in sales ) for ( var col in sales[ row ] ) sales[ row ][ col ] = 0;.

Matrix Multiplication• Write a multiplication function that accepts two 2D numpy arrays,and returns the product of the two. This function should test that thearrays are compatible (recall that the number of columns in the firstmatrix must equal the number of rows in the second matrix). Thisfunction should test the array sizes before attempting themultiplication. If the arrays are not compatible, the function shouldreturn -1.   solve in python

You need to generate a (5x12) rain matrix (Rain[5][12]) that contains the average rainfall over 12 months for a 5 year period.  You program should do the following steps: Create a 5x12 integer rainfall matrix Create a 5 element array of int pointers(int * Rain[5]) and assign each pointer to the address of the first element of each row Populate the elements of the matrix with pseudo-random numbers having a range from 0-100   Use the rand( ) function to generate your temperatures.  The output of rand() should be mod with 100 (rand()%100) in order to get reasonable rainfall values.  Init the random number generator with long seed = srand(67) This task should be performed by a function, void RainGen(int* Rain[ ], int R, int C), that populates all the matrix entries. After generating all rainfall matrix entries, print the entire matrix using the function, void Print(int* Rain[ ], int R, int C); Calculate the total monthly Rainfall  per year for the entire five years. Use the following…

C program