Lucy bought a 12 pound watermelon for $6.24.
part a
how much did she pay per pound?
part b
at this rate, how much would it cost to buy a 7 pound watermelon?

Part A: $0.52

Part B: $3.64

Step-by-step explanation:

Divide $6.24 by 12 pounds to determine the cost per pound

Multiply $0.52 by 7 pounds to find the cost for a 7-pound watermelon

the answer is (2x+8)²= 16

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls