How long does each phase of the moon (exactly) take long to complete?

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers

Suppose a gym membership has an initial enrollment fee of $75 and then a fee of $29 a month. which equation models the cost, c, of the gym membership for m months?