Answer:
28
Step-by-step explanation:
a) the independent variable is the number of training miles.
b) the dependent variable is the cost to mail the package
c) the dependent variable is P
The formula for compound interest
A = P( 1 + r/n) ^ (nt)
A is the amount in the account at the end
P is the principal balance or the amount initially invested
r is the annual interest rate in decimal form
n is the number of times it is coupounded per year
t is the number of years
A = 1800 ( 1+ .0375/1) ^ (1*6)
A = 1800 ( 1.0375)^6
A = 2244.92138
Rounding to the nearest cent
A = 2244.92
P(7) = 
There are 8 possible outcomes from the spinner and only one 7, hence
P(7) = 