In a school libary ,52% of the books are paper. if there are 2,658 books in the libary, how many of them are not paperback to the nearest whole number

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

Reinel saves 30% of every pay check. his paycheck last week was 560$. how much did reniel save last week?

If a suspect is in possession of 20 grams of cocaine how many ounces does he possess what will the charge be