As soon as possible. what is the surface area of the pyramid? 4.41 square feet 5.44 square feet 1.84 square feet 10.24 square feet

Surface area of a pyramid formula is- SA=2bs+b^2

So make the equation 2(.8)(6)+.8^2

now solve 2(.8)=1.6 now multiply 1.6 by 6 which equals 9.6.

The last step is to add 9.6+.8^2 which should get you 10.24

So the answer is D: 10.24

Step-by-step explanation:

4

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