Assignment:
Q1. Charlie cannot remember how much he financed to buy his car. He does remember that his monthly payment is $300. His add-on interest rate was 15% for 30 payments. Find the amount of his loan to the nearest penny.
Q2. Solve the equation using the quadratic formula. Give only read number solutions. 3x(x+3)=-4
Provide complete and step by step solution for the question and show calculations and use formulas.