You have 48 grams of a radioactive kind of xenon. If it's half life is 9 hours, how much will be left after 18 hours?

Three less than three times a number is 5/6. What is one more than twice the number

The are of a paraleelogram is 150 square meter. The height of the parallelogram is 15 meters. What is the lenht of the parallelogram?

Find the sum. Do not round. 39.882 + 11.03 =

Determine whether the sequence 0.25, 1,4,16,64, ... is geometric

Minus 7X minus 2Y equals 14 and 6X plus 6Y equals 18 with a graph

Solve 2x2 + 16x + 50 = 0.

Leo the rabbit is climbing up a flight of 10 steps. Leo can only hop up 1 or 2 steps each time he hops. he never hops down, only up. how many different ways can leo hop up the stairs?

All real numbers less than 0 or greater than 3

How does the graph of y = sec (x + 3) - 7 compare with the graph of y = sec (x) ?

A cone has a volume of 108 pi and a base diameter of 12. What is the height of the cone?