Bailey wants to buy a house, paying approximately $1000 per month. The bank estimates a 4.5% annual interest rate for 15 years. Which formula approximates the total value of a house Bailey can afford? A. P = 1000[1 - (1 + 0.045/12)^-180/0.045/12.
B. P = 1000(0.045/12)/1 - 1(1 + 0.045/12)^-180.
C. 1000 = d[1 -(1 + 0.045/12)/0.045/12]^-180.
D. 1000 = d(0.045/12)/1 -(1 + 0.045/12)^180.

I=Principle × Rate × Time so 1000×4.5/100 × 15yrs

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional