What is the value of x?
A. 5
B. 2.5
C. 7.5
D. 10

x = 5

Step-by-step explanation:

x is to x+5 what x-2 is 70 x+1

x/x+5 = x-2/x+1

x(x+1) = (x-2)(x+5)

x^2+x = x^2+ 5x - 2x - 10

x^2 - x^2 = -x + 5x - 2x - 10

10 = 2x

x = 5

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.