It rained 3/8 of a inch each day for 3 days straight how much rain fell altogether

If i have one apple and give you the apple, how many apples do i have?

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.

How do you solving the solution of each system using elimination?