Answer:
275.63 mm^2
Step-by-step explanation:
The measurements of the pyramids are
Edge length: 10
Egde width: 8.66 (because 10x8.66/2 = 43.3)
Height: 9
To find the surface area, use this formula, and you will get 275.63:
I believe the answer is 1064.
P.s. your cute matsuki <3
98000*0.15 is how you would find out how much he has to pay for tax, which is 14700. since you didn't post plan b, this is all i can do.
Ln(56) = 4x-9
ln(56) + 9 = 4x
(ln(56) + 9)/4 = x
28 units cubed I believe to be the right answer