So we can get pairs
(x,y)
we have
(-3,-3)
(7,-3)
(7,2)
so list known ones
x=-3,7,7
y=-3,-3,2
we find pairs
x=7 and 7
y=-3 and -3
the missing one is another -3 for x and 2 for y
therefor the last point is
(-3,2)
The answer is C and D. From the result, we can use this to represent the whole customer. But the percent calculation need to use the number of customers divided by total of 75, not 100.
Answer provided by our tutors
P = the principal
t = 25 years the time in years
r = 0.0525 or 5.25% annual rate
m = 1 compounding periods per year
i = 0.0525 or 5.25% interest rate per period
n = t*m = 25 total number of compounding periods
A = $75,000 future value
A = P(1 + i)^n
P(1 + i)^n = A
P(1 + 0.0525)^25 = 75000
by solving we find:
P = $20,869.34
7/4 equals 1 and 3/4
2 and 5/8 equals 2 and 5/8
