Explain how to use mental math to find 530-166

Askate shop rents roller skates as shown on the table below. which graph and function models this situation?

The median for the given set of six ordered data values is 29.5 9 12 25 __ 41 48 what is the missing value?

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?