How many cards did benny start with

Evaluate 4 a for a = 5 2/3 . express your answer in simplest form.

You have 6 dollars +12 pennies +to quarters + 4 dimes=2 nickels how much do you have

Three cylinders have a volume of 2836 cm^3. cylinder a has a height of 900 cm. cylinder b has a height of 225 cm. cylinder c has a height of 100 cm. find the radius of each cylinder. use 3.14 as an approximate for π