Natalie opened a bank account that earns 2.5% simple interest. If her account earned $180 over ten years, how much was Natalie's initial deposit when she opened the account?

i believe your answer is $7,200

Step-by-step explanation:

take 180 and divide it by .025, you should get $7,200.

step-by-step explanation:

given that ab is divided into equal parts as

ac, cd, de, ef, fg, gh, hi, ib.

from this we find that f is the midpoint of ab.

so using mid point formula we find

f = (3,7)

similarly considering fb, we get

h = mid point of fb = ((6,6) and g, mid point of fh is

g = (9/2, 13/2)

i is mid point of hb

so i =(15/2,11/2)