Dave walked to the store at an average speed of 3.5 miles per hour for 0.5 hours. Then he jogged to his friend's house at an average speed of 7 miles per hour for 1.5 hours. What was the total distance in miles that Dave traveled?

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.