Charmaine made $156 for 13 hours of work.
At the same rate, how much would she make for 9 hours of work?

$108

Step-by-step explanation:

Because 156/13=12

So $12 for 1 hour of work

12*9=108

So $108 for 9 hours of work

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.