Ms. Mannor gave her class 18 minutes to read. Carrie read 6 3/4 pages in that time. At what rate, in pages per hour, did Carrie read?

At least two people have the same birthday in a school of 150 students

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.