Line 4, you are supposed to divide/multiply before you add/subtract.
They added 5+16 but instead they should've divided 42/5.
Hope this was fast enough!
The true answer is 90,000 but 100,000 is the closest
Answer with Step-by-step explanation:
Amount in Bonnie's account initially=$ 70
The formula for simple interest= 
Where P is the principal amount
R is rate of interest
and T is the time
Here, P=70,R=4.5,T=3
Interest= 
= $ 9.45
Hence, Total amount in his savings account after 3 years= $(70+9.45)
= $ 79.45
Hence, correct option is:
B. $ 79.45