Bonnie deposits $120.00 into a new savings account. The account earns 3.8% simple interest per year.

No money is added or removed from the savings account for 4
years.

What is the total amount of money in her savings account at the end
of the 4 years?

A $4.56
B $18.24
C $124.56
D $138.24

PLEASE SHOW WORK

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