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52

Step-by-step explanation:

(4*3)+2(3*2)+(4*3)+(3*4)+(2*4)=52

52 - you need to first find the area of the rectangle(4*(3+2+2+2)= 40; the the other two rectangle area= (3*2)+(3*2)=12; now the surface area for the prism is 40+12=52

f(x) is the value of the function. b is the value of the function when x equals zero or the y-coordinate of the point where the line crosses the y-axis in the coordinate plane.

step-by-step explanation:

hope 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