Are these ratios equivalent? 0.42: 42 and 0.18: 1.8

yes or no

no . Not equivalent.

0.42:42 = 0.42/42 = 42/4200 = 1/100

0.18/1.8 = 18/(1.8×100) = 18/180 = 1/10

1/100 ≠ 1/10

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.