Anyone know this or can help solve with explanation

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight in pounds, w, of the contents that liz will ship to her friend if she must use a medium flat-rate box. use the drop-down menus to explain your answer.

Find the sum of the given arithmetic series. 24 + 17 + 10 + 3 + + (–39)