What is question a, b, c, d, e, and f? Thank you!

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

In which form is the following function written? y = - 2(x – 3)(x + 5)

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two