Answer:
a. $ 2,431.01 = 4 years
b. $ 4,584.04  = 17 years
c. 4.57 years = $ 2,499.57
d. 8.3 year = $ 2,998.48
e.  $ 2,431.01 = 4 years
Step-by-step explanation:
Compound Interest Equation
A = P(1 + r/n)nt
Where:
A = Accrued Amount (principal + interest)
P = Principal Amount
I = Interest Amount
R = Annual Nominal Interest Rate in percent
r = Annual Nominal Interest Rate as a decimal
r = R/100
t = Time Involved in years, 0.5 years is calculated as 6 months, etc.
n = number of compounding periods per unit t; at the END of each period
 
        
             
        
        
        
Answer:
-0.4 = −2/5
Step-by-step explanation:
Rewrite the decimal number as a fraction.
-0.4/1
Multiply to remove 1 decimal places. 
-0.4/1 x 10/10 =4/10
Find the GCF. 
4 ÷ 2/10 ÷ 2 = 2/5
x = 2/5 
-2/5
 
        
             
        
        
        
Shifting a graph up by c units involves adding c to the whole function
therefor
y=ax^2+c is c units higher than y=ax^2 (aka, it is shifted c units up)
        
             
        
        
        
If Josie bought a mirror with 5 sides it would be a pentagon