The half-life of a radioactive kind of radium is 11 days. How much will be left after 22 days, if you start with 64 grams of it?

5 + 3x = - 1 + 6 (6x + 1)

If x+3/3 = y+2/2, then x/3 =

What are the first 20 numbers in pi?

What is 39/40 simplified

There are 18 girls and 12 boys in your class. What is the probability of a new kid entering your class will be a boy?

Factor the polynomial: 6y3 + 9y2

A rectangular prism has a square base with side lengths of 5 centimeters and a height of 7 centimeters. What is the volume of the prism?

La argentina se encuentra rodeada de océanos al este y al oeste?

Betsy has $468 in a personal bank account, and then withdraws $9 per week. Carlos has $18 in a personal bank account, and then deposits $66 earned from yard work each week. After how many weeks will they have the same amount of money in the bank?

The difference of two numbers is less than the greater number