4. The monthly cost by C, in dollars, of tuition at a daycare center in Boston can be approximated by
C = 2880 - 320* n
where n is the age in years of the child
a) Solve for n in terms of C.
b) Find the age n of a child if the cost of tuition is $1920.

5. Patrick had $2000 on his financial aid visa card. He registered for 5 courses for this seminar and paid the same amount for each course. After paying for the courses, his balance was -$430. How much did each course cost?

6. BHCC Medical Radiography program had 139 graduates. There were 25 more females than males. How many females and males graduated?
Identify the variable:
Write the equation:
Solve the equation:
State your solution:

7. A collector is selling antique coins from the collection. Currently, each coin is worth $11.50. month. The value of each coin is expected to increase by $1.35 per month. If Jennifer purchases 25 coins, what is the expected value of the coins 12 months from now.

8. A pet store has 90 pets (dogs, cats, birds) for sale. There are 3 more dogs than cats. There are 6 fewer birds than cats. How many of each type of pets are in the shop?
Identify the variable:
Write the equation:
Solve the equation:
State your solution:

9. A bike repair MAT 097 Foundations of Algebra| Form Jessica's bike. shop charges $15.40 for parts plus $8.50 for labor K to fix
a) How much would Jessica pay for 2.5 hours of labor?
b) How many hours is Jessica's bike worked at if she receives a bill of $504.20?

10. An auto shop charges $75 dollars for tire installation. If Joe needs to change 2 tires of his car. What is the price range of one tire if he wants to spend between $200 and $305? (Express your answer as an inequality).

4. The monthly cost by C, in dollars, of tuition at a daycare cente...