Please hurry! It’s a Saturday and this is past due homework! Cheyenne received a unicycle for her birthday. She has been practicing and getting proficient at riding. Her
mother asks her to go to the mailbox and bring in the mail. The driveway is 400 feet long. If her unicycle has a
wheel with diameter of 16 inches, how many rotations will the wheel make in the journey to the mailbox? Use
3.14 for 7. Round to the nearest hundredth.

answer: c, the green line

step-by-step explanation:

there is no black line, eliminate b.

simple interest implies periodic payments, but the red line shows no payments, eliminate d.

simple interest has equal payments. if paid say every day, the graph is about a straight line (actually a stairstep).

the yellow line is not straight, eliminate a.

check: the green line is straight, answer is c.

simple interest with positive interest rate gives a straight line sloping up to the right. green line:

g(t) = $100 + ($200-$100) ÷ (20 years) × (t years)

= $100 + (4%/year) × ($100)(t years)

incidentally, the yellow line curving upward represents continuously compounded interest

y = $100 × 2^(t years / (14 assuming the yellow line hits $200 at 14 years. 2^0 is 1, so y(0) = $100; 2^(14/14) is 2, so y(14) = $200.