What is the value of b^2 - 4ac for the following equation?

x^2 + 5x + 4 = 0

a. 9
b. 16
c. 25

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

What function has a range {yly< 5}? question on picture above^