the correct answer is 4810 bacteria grew after 9 hours
It's C)
the graph is decrasing, so the variable rate is negative (-2/3)
the rest was quite easy, you just take a look at where the graph cuts the y-axis and determine the rest from the rate of going up or down (increase/decrease)
The correct answer is 700 months .
<h3>
What is simple interest?</h3>
- Simple interest is based on the principal amount of a loan or the first deposit in a savings account.
- Simple interest doesn't compound, which means a creditor will only pay interest on the principal amount and a borrower would never have to pay more interest on the previously accumulated interest.
Given,
I = 105
P = 100
r = 0.15
Now use simple interest formula,

105=100×(0.15)×(t)
Swap sides so t is on the left.
100 ×(0.15)×(t)=105
Divide both sides by 100.
0.15t=1.05
Divide both sides by 0.15
t=700
So, we see that it takes 700 months to earn this amount.
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Answer:$24
Step-by-step explanation: