Ermaine’s father owes $6,300 in interest at the end of a 60-month car loan at a 7% simple annual interest rate. what was the original loan amount?

The pertinent formula is i = p*r*t.  Here, i = $6,300, r = 0.07 and t = 5 yrs.

We want to solve this for the principal, p.  Since i = p*r*t,  p = i / (rt).  In this case, the principal was:

p = $6,300 / [0.07*5] = $6,300 / 0.35 = $18,000

y=mx+

step-by-step explanation:

y = | -2(-2) |     →     y = | 4 |     →     y = 4       ⇒   (-2, 4)

y = | -2(-1) |     →     y = | 2 |     →       y =   2       ⇒   (-1, 2)    

y = | -2(0) |     →     y = | 0 |     →       y = 0         ⇒   (0, 0)

y = | -2(1) |   c →     y = | -2 |     →     y =   2         ⇒   (1, 2)    

y = | -2(2) |     →     y = | - 4 |     →     y =   4         ⇒   (2, 4)