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15 2/8

Step-by-step explanation:

The total is 35 6/8 ... You have to add 12 3/8 + 8 1/8 = 20 4/8

Minus 35 6/8 - 20 4/8 = 15 2/8

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.

it is 570

step-by-step explanation: