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

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square