Which expression is equivalent to 4s + 4s?

1)

16s

2)

8s

3)

8 + 2s

4)

16s2

Pyotr tchaikovsky sporting goods operates on a 45% overhead based on the selling price, which results in an overhead of $65.34 on the newest version of an air hockey game set. if the air hockey game set costs pyotr tchaikovsky sports $49.32, find the selling price, the markup, and the net profit.

Factor the polynomial. b^2 + 4b + 4

Select all of the following expressions that are equal to 2.5.