1. Dorothy Haley bought a property for 25% less than the list price and resold it for the list price. What is the percent of profit?

Percentage profit

= 33.33%

Step-by-step explanation:

Let the list price be called X

Dorothy Haley bought it for 25% less than the list price = x-(0.25x)

= 0.75x

But then sokd it back at the list price

=x

Profit = selling price- cost price

Percentage profit

=( profit/cost price) * 100

Profit= x-0.75x= 0.25x

Percentage profit=( 0.25x/0.75x)*100

Percentage profit = 1/3 * 100

= 33.33%

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.