Fred completed 10 math problems. this is 40% of the number of total math problems he has to do. how many total math problems must he do?

Rai compares two cable plans from different companies. which equation gives the correct value of mm, the number of months for which plans a and b cost the same?

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days

There is an entrance to the computer room at point e which lies on ab and is 5 feet from point a. plot point e on the coordinate plane. find the distance from the entrance at point e to the printer at point e