The standard form of the equation of a parabola is y = 5x2 + 20x + 14. what is the vertex form of the equation? a. y = 5(x + 2)2 + 10b. y = 5(x + 2)2 - 6c. y = 5(x + 4)2 - 6d. y = 5(x + 4)2 + 10

Harry owes the bank money. to repay his debt, he paid $150 back to the bank each month. after 10 months, his remaining debt was $6900. what was the original amount of harry's debt? how long did it take harry to pay back his entire debt?