A35 pound dog eats an average of 2 1/2 cups of dry dog food a day. if you assume that there is a relationship between size and consumption, the amount of food an animal eats, how much food does a 70 pound dog eats? if your dog is 140 pounds, and you have 7 1/2 cups of food, do you have enough? explain your answer. challenge: an 8 pound cat eats an average of 1/2 cup of dry food. per pound, which type of animal eats more, cat or a dog? explain your answer.

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.

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