12 - 3 × c = c y + 4 = 3 × y + 3

-8 × w + 30 = 2 × w - 20

9 × x + 1 = 7 × x + 19

y + 10 = 8 × y + 24

d + 6 = 2 × d + 2​

20

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.

i would say true? if the unit was informational and it "refreshed your understanding", then true.