Jemma has 24 balls. out of the 24 balls,
12 are yellow, 4 are pink, and the rest
are red. what is the ratio of the number
of red balls to the number of balls that
are either yellow or pink?

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