What is a phrase for the algebraic expression 4+x?

Write the pair of fractions as a pair of fractions with a common denominator

Combine the information in the problem and the chart using the average balance method to solve the problem.

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?