The answer is the third one.
Answer:Gwen will pay $560 in total
Step-by-step explanation:
From the 400 she will pay back and the 40% .40x400= 160 + 400 making it into the total to $560
$26.60, take 72/50.40 to find how much money it is per minute. Set that equal to 38/x- x being the unit price you’re trying to find. Then cross multiply to get $26.60