Ralph buys 4/5 of a pound of apples for $2 per pound. He pays with a $20 bill. Find the amount of change he will receive.

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?

Jude is making cement for a driveway. the instructions show the amount of each ingredient to make 1 batch of cement. complete each statement to adjust the ingredients for each new situation if jude uses these instructions.

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?