Donna has scored 62, 70, and 62 on her previous three tests. What score does she need on her next test so that her average (mean) is 63?

To test an individual's use of a certain mineral, a researcher injects small amount of a radioactive form of that mineral into the person's bloodstream. The mineral remaining is the bloodstream is measured each day for several days.

Linear equations definition for 2nd grade

A sequence is defined by the recursive function in + 1) = An). If $ (3) = 9, what is (1) ?

Perimeter of a square field is 1.6 kilometers. what is the area of the field in square kilometers?

How many times larger is a 10 pound dog than a hamster weighing five eighth pounds

The difference of 17 and 5 tines a number

Fran's store spent 64,000 on expenses last year, Rent for the store was 35% of those expenses. How much did Fran spend on rent?

What is the answer to this (143 (5) + 67) 5=

Least common multiple of 10 and 15

Adam's father spent 1 hour and 50 minutes working on his truck. If it was 7:35 when he stopped working, what time was it when he originally started?