Steven bought two boxes of erasers. one box had 36 erasers in it. he then gave 18 of his erasers to his friend. how many erasers did steven have left?

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers

If value of cos330° is √3/2 then find tan165°.

Aculture started with 4,000 bacteria. after 5 hours, it grew to 5,200 bacteria. predict how many bacteria will be present after 19 hours. round your answer to the nearest whole number.