Solve the following linear programming problem.
maximize:
z = 7x + 4y
subject to:
8x - y less than or equals15
3x + y greater than or equals13
x greater than or equals2
y less than or equals9
the maximum value is?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers