Eric is building a cubby bookshelf, that is, a bookshelf divided into storage holes (cubbies) instead of shelves. He wants the height of the bookshelf to be X^2-3x-10 and the width to be X^2-6x-8. Each cubby hole in the bookshelf will have a height of X +4 and a width of X -5.

v=1788.75

step-by-step explanation:

i belive that is the answer

if you get paid hourly because if you get a salary you could work all week and only get paid a certain amount no matter how much you work but if you get paid hourly then you get paid for every minute you worked.

you have to find the same variables -3n - 5n so this would be -3n +(-5n) which equals -9n