2. Les drives 4 miles each way to work at an average of $0.195 per mile. He pays $2.25 a day to park and works an average
of 24 days per month. If Les joins a car pool with three other
workers, what will his average monthly cost be to commute to
work?

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

the answer to this is a. a^2 + b^2 = c^2