Need badly

#15 find the area of each sector.

The highlighted sector is exactly 3/4 of the circle area, because is 3/4 of which is a complete rotation.

Since you are given the radius, you can compute the area as

So, 3/4 of this area would be squared cm.

The remaining sector, of course, is squared cm.

so what is the question

step-by-step explanation:

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