Does 4/7 and 24/35 form a proportion?

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?

Point r divides in the ratio 1 : 5. if the coordinates of e and f are (4, 8) and (11, 4), respectively, what are the coordinates of r to two decimal places?

Sections of prefabricated woods are each 5 1/3 feet long, how long are 7 1/2 sections placed end to end?