Molly wants to buy a dress that costs $20. She has a coupon for 40% off, and there is a 10% sales tax. How much will she pay altogether? 1. What is the 40% of $20? Show your work.

2. After using the coupon, what is the sale price of the dress?

3. How much is the 10% tax on the sale price? Explain how you found your answer.

4. After tax is added to the sale price, how much does Molly pay for the dress?

1. 40 percent of 20 = 8 meaning she has to pay 8 dollars

2. The Sales Price is 8

3. 0.8 sales tax

4. eight dollars and 8 cents

correct me if im wrong

i am thinking c. sorry if im wrong .

step-by-step explanation:

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.