Answer: a) $778.67 b) 19 years
Step-by-step explanation:
The formula you would use is

where a is the amount
n is the length of time
P is the principle
and r is the rate in decimal form
a)

b)
put your initial equation into a graphing calculator and use the table function to find that after 18 years it is worth 117 and in 19 years 86-
Answer:
x = 94
Step-by-step explanation:
(86 + x)/2 = 90
86 + x = 180
x = 94
Answer:
<h2 /><h2><u>1x - 1</u></h2>
Step-by-step explanation:
<h3><em>3x - 7 + x2 - 4x + 6</em></h3><h3><u><em>1</em><em>x</em><em> </em><em>-</em><em> </em><em>1</em></u></h3>