Mason Product high

Help on 2 math problems. will give out 10 points to best answer.? - best racquetball racquet of 2010

For questions 1-3: Carol pays $ 50 per year to join the Recreation Center. You pay $ 2 every time you play rent a racket and a ball on the pitch.

1.What equation represents the total cost of the racket from the number of games played?

a. C = 50 + 2
b. C = 50 + 2n
c. C = 50 N + 2

2. The domain name is in Question 1:
a.allen real numbers ≥ 50
b.all positive numbers
c.all positive integers

3. The special for this situation in Problem 1 is:
a.allen real numbers ≥ 50
b.all positive numbers ≥ 50
c.all positive even integers ≥ 50