how do you add fractions and subtract fractions?

How many gallons of a 70% antifreeze solution must be mixed with 80 gallons of 25% antifreeze to get a mixture that[..]

472 books is 130% of what number of books?

One cubic centimeter of aluminum foil weighs 2.7 grams. If a piece of aluminum foil weighs 5.4 grams find the[..]

One cubic centimeter of aluminum foil weighs 2.7grams. If a piece of aluminum foil weighs 5.4 grams find the volume.

ratio of the length of a side of one square to that of another square is 3:4the . A side of the smaller square is[..]

you invest $500 for 3 years and receive $60 in simple interest. what is the annual interest rate. use the formula[..]

the ratio of the length of a side of one square to that of another square is 3:4. A side of the smaller square is[..]

A plane with a tail wind is traveling at a speed of 397 mph. On the return trip travel into the same wind the plane[..]

How tall was a person whose femur was found to be 22.5 inches in length. What is an invalid value for the domain of[..]