Ebony started with $100 in her piggy bank and every week she saves $5. Write an algebraic representation for the amount in my piggy bank given time.

To maximize the income should be 28 buses and 160 cars

Step-by-step explanation:

Let

x-----> the number of cars

y ----> the number of bus

we know that

------> inequality A

----> inequality B

The function of the cost to maximize is equal to

Solve the system of inequalities by graphing

The solution is the shaded area

see the attached figure

The vertices of the solution are

(0,0),(0,53),(160,28),(189,0)

Verify

(0,53)

(160,28)

therefore

To maximize the income should be 28 buses and 160 cars