Answer:
<h2>f(x) = -5</h2><h3 /><h3>explanation</h3>
x + 5 = 0
x = -5
Use the formula b over 2 squared In order to create a new term, solve for x by using this term to complete the square. X= 1, -7
-9.0909 as a percentage =-90909\10000 x 100=answer=-909.09%
Amount = P

P is the amount you invested.
r is the interest rate in decimal form (so 6% = 0.06)
n is the number of times a year you are paid interest (semiannually = 2)
nt is the number of payment times you expected (4 years, twice a year = 8 times)
Is would be a 150% increase. Since your going from 18 to 45, your increase of percentage would be 150%, and the difference is 27.