Important please help me What is the volume of the shaded portion of the
composite figure? Express your answer in terms of A.
O 519[pie] units 3
O 681[pie] units 3
O (600[pie] - 81) units
O (600 – 81[pie]) units

the third one is the answer

what is the graph

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