#7 - Raphael purchases a new DVD at M-Mart. He pays 8% in tax on the cost of the DVD. If the tax amount is $1.20, how much does Raphael spend on the DVD, including tax? *

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.

you save $70

discount would be 35% off

step-by-step explanation:

answer: answer is b.

[m < b = 120º]

step-by-step explanation: