Multiple Choice Please select the best answer and click subm

Multiple Choice: Please select the best answer and click \"submit.\" A student gets paid to deliver newspapers after school. She earns $25 a day, plus an extra $0.75 for each newspaper she delivers and $5 for each new customer she signs up for delivery. If d = days, n = newspapers, and c = customers, what function can she use to calculate her earnings? A T = 25 d + n/4 + 5/c B. T = 25 d + 3/4 n + 5c c. T = 25 d (3/4 n) + 5c D. T = 25/d + n + 5c

Solution

Lets break up her earnings

She works n days, and gets $25/day. Then her earnings for working n days = 25d

She gets $0.75($3/4) for every news paper she sells. Therefore for n newspapers sold, she gets = (3/4)n

She gets 5 dollars for every new customer signed up. Therefore earnings for c customers signed up = 5c

Therefore her total earnings T = 25d + (3/4)n + 5c. Option B is the correct answer.