Kris forwards an email to 5 people. each of those people forward that email to 5 more people. if this happens two more times, which expression shows the total number of people who received the email, not including kris? a) 4 x 5 b) 1 + 5 + 5^2 c) 5 + 5^2 + 5^3 d) 5 + 5^2 + 5^3 + 5^4

nope

Step-by-step explanation:

lear this

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18