# Calculus

posted by
**Matt** on
.

A survey of one thousand people found that 70% of the people have a

CD player, 85% have a telephone, and 45.2% have a computer. At

least how many people have all three objects?

posted by
**Matt** on
.

A survey of one thousand people found that 70% of the people have a

CD player, 85% have a telephone, and 45.2% have a computer. At

least how many people have all three objects?