7^2 times 7^8 / 7^4 =7^a /7^4 =7^b what does a and b equal ?

a = 10

b = 6

Step-by-step explanation:

(7^2 * 7^8) / 7^4 = 7^a / 7^4

7^2 * 7^8 = 7^10

7^10 / 7^4 = 7^a / 7^4

7^10 = 7^a

a = 10

7^a / 7^4 = 7^b

7^10 / 7^4 = 7^10-4

7^6 = 7^b

b = 6

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.