Now im new and i struggle me =(

1.hamburger meat is on sale for 2.50 a pound this can be written as 2.50x evaluate this expression if you buy 7 pounds of hamburger

2.write an algebraic expression for the word phrase 8 times the product of g and h
a. 8
b.8gh
c.8(g + h)
d.8(g - h)

1. In this problem, the variable x represents how many pounds of hamburger meat you're buying. So, to solve the expression, just replace x with how much you're buying, in this case, 7.

2.50x     Plug in 7 pounds for x
2.50(7)   Multiply
17.50

You will pay $17.50 for 7 pounds of hamburger meat.

2. 8 times (8 x) the product (multiplication) of g and h.
    The product of g and h means you multiply them, so it will be gh. Then,        you'll multiply that by 8 and get 8gh. So, the correct answer is choice B.