Correct?
a racecar can travel 2 laps in 4 minutes. at this rate, how long will it take the racecar to complete 75 laps (in minutes)?

my
4/2 = x/75

2x = 4 * 75

2x = 300

2x/2 = 300/2

x = 150

Anew fountain in the shape of a hexagon will have 6 sides of equal length. on a scale drawing, the coordinates of the vertices of the fountain are: (7.5,5), (11.5,2), (7.5,−1), (2.5,−1), (−1.5,2), and (2.5,5). how long is each side of the fountain?

The table shows the balance of a money market account over time. write a function that represents the balance y (in dollars) after t years.

What does independent variable and dependent variable mean in math?