What is the surface area of this prism 5cm 5cm 5cm 4cm 10 cm can u show ur steps like this b=10cm

h=5cm

a=10cm x 5cm=50cm

50cm x 3 = 150cm by

b=5cm

h=4cm

a=5cmx4cm/2=20cm/2=10cm

10cm x 2 =20cm

150cm plus 20cm =170cm^2

45

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Step-by-step explanation:

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Step-by-step explanation:

I think it will be the answer

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