What is the answer to this?

486

Step-by-step explanation:

We start by getting the quotient.

That is f(x) divided by g(x)

We have this as;

f(x)/g(x) = 2x^3/2 divided by x^1/4

By law of indices division, we have this as;

2 * x^(3/2-1/4)

= 2 * x^(1.5-0.25)

= 2 * x^(1.25)

= 2x^5/4

Insert x = 81

That will be;

2 * (81)^5/4

Multiplying this by 2, we have;

2 * 243 = 486

$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)