Kyle has 3 times as many marbles as Curtis.
Curtis has 5 times as
many marbles as Robert.
Robert has half as many
marbles as Arnold. What
is the ratio of the Kyle's
marbles to Arnold's
marbles and why?

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field