Nata spent $28 on 2 dvds. at the rate, how much would 5 dvds cost? at what rate did she spend her money?

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

You are designing a rectangular pet pen for your new baby puppy. you have 30 feet of fencing you would like the fencing to be 6 1/3 feet longer than the width

If a 36 inch yardstick casts a 21 foot shadow, how tall is a building whose shadow is 168 feet? what is the scale factor