Any polyhedron can be the base of a pyramid.\ a. true b. false

Step-by-step explanation:

The statement is false, because a pyramid has an two-dimensional figure at its base, you can see this by observing the equation for a pyramids volume:

Where is a two-dimensional shape, like a triangle, rectangle, polygon.

So, the reason why is false, is because a polyhedron is a three-dimensional figure, it's now two-dimensional, so it can't be in the base of a pyramid, because it won't form a pyramid.

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation: