Evaluate the expression 2m+2n if m=9 and n=3

What is the distance between the points (2 -3) and (-6 4) on the coordinate plane

Joanie watched 1 out of three of a movie in the morning

The input to the function is x and the output is y. write the function such that x can be a vector (use element-by-element operations). a) use the function to calculate y(-1.5) and y(5). b) use the function to make a plot of the function y(x) for -2 ≤ x ≤ 6.