Answer:

Step-by-step explanation:
66
- 43 = 47/2
Nathaniel's total cost is $(3.50 x2 + 3.25 x4 +1.90 x2 +1.20) = $24 he got 5% off so he paid $24- (24* 5/100) =$22.80
Answer:
$13,082.60 more
Step-by-step explanation:
Melanie:

Amelia:

Amelia-Melanie= $13,082.60
A number decreased by three square is: (where x is the number)
x - 3^2