7x +2y = 24
8x+2y= 30
what is x and y

x = 6

y = -9

Step-by-step explanation:

we have:

7x +2y = 24    equation 1

8x+2y= 30     equation 2

using equation 2 we have:

8x = 30 -2y

x=  equation 3

using equation 3 in equation 1 we have:

7()+2y = 24

so we have:

x=

x=

x=6

answer: 590

step-by-step explanation:

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.