Simon bought a $48 table on sale at 30% off. select from the drop-down menu to correctly complete the sentence. the best estimate for the discount can be found using the expression . 0.3 (50) 0.03(50) 3(50) 30(50)

0.3(50)

Explanation:

Turn 30% into a decimal. This is done by imagining there is a decimal in-front of the percent symbol. Move it two times over to the left. It will appear before the 3, making it 0.30.

Beginning:

Now since we have that, just think of making the equation.

$48 rounded becomes $50.

Examples:

percent(rounded amount) = answer

number(times this number) = answer

Summary:

Since 0.3 is the percent, and $48 is the total price, you'd times them by each other.

So the answer is:

0.3(50)

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.