Answer:
$5400
$45
Step-by-step explanation:
Interest = principal x interest rate x time
principal = p
interest rate = 15%
time = 20/365 = 0.054795
Interest = 5445 - p
5445 - p = 0.15 x p x 0.054795
5445 - p = 0.008219p
Collect like terms and solve for p
p = $5400
Interest = 5445 - 5400 = $45
-7 = x/2 + 1
Subtract one from both sides
-8 = x/2
Multiply two on both sides
-16 = x
Answer, x = -16
Checking,
-7 = (-16/2) + 1
-7 = -8 + 1
-7 = -7
The answer is C. Because 3•2x=6x, 7•x=7x which added together = 13x and same way for the rest!
A = 2
b = -5
c = 6
The coefficients are 2 and -5
The constant is 6