Aiden has one box that is 3 3/11 feet tall and a second box that is 3.27 feet tall. If he stacks the boxes, about how tall will the stack be?

In a school 2/3 of the students study a language of those who study a language 2/5 study french

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary

Collin did the work to see if 10 is a solution to the equation r/4=2.4