Answer is A, basically using the Pythagorean theorem but in a slightly different way, should still get you the same answer.
Answer: $34.75
Step-by-step explanation:
n= 6.25x+3.50
n=6.25(5)+3.50
n=31.25+3.50
n=34.75
C would be the answer as

is the same thing as x * x * x * x.