Answer:
No, because he is being charged more than what the discount is.
45/40=18 $18 $45-$18=$27 He should be charged $27.
To answer this question, more information needs to be disclosed.
6.25
Step-by-step explanation:
(x-a)^2=x^2-2ax+a^2
2a=5
a=2.5
2.5 ^ 2 = 6.25
