A club has members from three grades. It has 36 members from sixth grade, 24 members from seventh grade, and 30 members
from eighth grade.
What is the ratio of the club's seventh graders to eighth graders?

4 7th graders to 5 8th graders

Step-by-step explanation:

the answer is a

step-by-step explanation:

because your just changing the position of where the shape is

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