If three tenths of the bowling pins were up, what fraction of the bowling pins would be down?

There would be seven tenths of the bowling pins down

Step-by-step explanation:

Lets say that there are 10 bowling pins in all. All would be represented in the fraction 10/10. If 3/10 of the bowling pins are up (which means that 3 bowling pins are up), you can just subtract the number of all the bowling pins to get the number of bowling pins down, which, in this case, would be 7/10 or 7 bowling pins. If you subtract 10/10 - 3/10, then you get 7/10, which is the number (fraction) of the bowling pins that are down.

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.