Ineed with starting the equation or getting the answer

The costs per year U(x) and S(x) when x represents the number of fitness classes attended:

1) U(x) = 250 + 3.5 * x

2) S(x) = 400 + 2 * x

3) Set the costs of both gyms to be equal and solve for x:

U(x) = S(x)

250 + 3.5 * x = 400 + 2 * x

1.5 * x = 150

x = 100

The costs for both fitness gyms are the same when you attend 100 classes. The costs are:

U(100) = 250 + 3.5 * 100 = 250 + 350 = 600

S(100) = 400 + 2 * 100 = 400 + 200 = 600

Both gyms will cost $600 if you attend 100 classes.

250

step-by-step explanation:

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.