Nickolas practiced his trumpet for 12 hours for ten weeks in a row how many hours did he practice altogether

Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents

What is the measure of sty in oo below? 130 310 230 50