Isaac takes 5 minutes to ride his bike down the hill to school and 10 minutes to ride up the hill from school. he attends school monday through friday. how many minutes does he spend biking to and from school in two weeks? write an equation to model your work.

150 minutes

Step-by-step explanation:

Given

Issac take 5 minutes to ride his bike down the hill to school

and 10 minutes to ride up the hill from school .

So it takes 15 min each day to and from school

He attends school monday through friday

so 5 days in a week

for 5 days it takes  

for 2 weeks

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.