Techechtium-99m has a half-life of 6 hours. If 1000mg is in use, in how many hours will 62.5mg remain?

If Johnny has 3 apples and he gives Tom one apple how many apples does Johnny have

The sum of 3 and 13

What is the mean of the following data? 53, 71, 89, 10, 62

What is 1/8 divided by - 1/4?

A car travels at the rate of x miles per hour for y minutes. which of the following gives the number of miles the car has traveled? a) x/y b) xy c) 60x/y d) xy/60 e) 60xy

Deeside weather the given number is a solution of the given equation. Is 8 a solution of y + 9 = 17? Yes or no. Simplify the expression by combining like terms. 10x - x - 2x - x 8x x² + 8x 6x -x² + 8x

An item is regularly priced at $35. It is on sale for 40% off the regular price. how much in dollars is discounted from the regular price?

Sally has 6 red flags, 5 green flags, and 4 white flags. How many 15 -flag signals can she run up a flag pole?

The LCD for 3/4 and 1/6 is

Solve this inequality:-9x-6≥-3 (x-4)