Which equation could have been used to create this graph?

a.
y = 6x

b.
y = 3x

c.
y = x + 3

d.
y = x + 9

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?

Having a hard time understanding this question (see attachment).

One positive integer is 2 less than another. the product of the two integers is 24. what are the integers