Write as a product: 16−(3−4b)^2

If you help and get it right, I'll try to give you an extra ten points.

Step-by-step explanation:

16 = 4^2 What you get is then  a difference of squares.

(4 - (3-4b)) * (4 + (3 - 4b)) Remove the brackets.

(4 - 3 + 4b) * (4 + 3 - 4b)  Combine like terms.

(1 + 4b)(7 - 4b)

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)