How many ink cartridges can you buy with 98 dollars if one cartridge costs 14 dollars? Write and solve the equation that represents the situation.

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

Which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the equation -1/2x+3=4-1/4x? a. -1/4x=1 b. -3/4x=1 c. 7=1/4x d. 7=3/4x