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.

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles