Please help me , step by step explanation needed

Explanation

Part (a)

The smaller pyramid up top is the result of slicing at the halfway point.

This leads to the ratio 1:2 when comparing small side to larger side.

Cube both parts of that ratio to end up with 1:8 as the volume ratio.

This means if the smaller pyramid was say 1 cubic foot in volume, then the larger pyramid has a volume of 8 cubic feet.

Part (b)

Consider the case that,

The volume of the truncated base is 8-1 = 7 cubic feet.

The ratio of the smaller pyramid to the truncated base is 1:7

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)

grab rope, tie a loop-de-loop, put it around ur neck, now jump while its tied to a high place. now your shoes are cool.

step-by-step explanation: