Who wants a brainliest???

s= -5

Step-by-step explanation:

-12=8+4s

We move all terms to the left:

-12-(8+4s)=0

We add all the numbers together, and all the variables

-(4s+8)-12=0

We get rid of parentheses

-4s-8-12=0

We add all the numbers together, and all the variables

-4s-20=0

We move all terms containing s to the left, all other terms to the right

-4s=20

s=20/-4

s=-5

s=-5

Step-by-step explanation:

divide by 4

subtract the -2

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

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.