Using an exponential equation, supposing a rate of 5%, it is found that it will take about 2.9 years for Emma's balance to reach $450.
An increasing exponential function is modeled by:

In which:
A(0) is the initial value.
r is the growth rate, as a decimal.
In this problem:
Her initial balance is of $300, hence . A(0)=300
The growth rate is of 15%, hence R =0.15
Then,


It will reach $450 after t years, for which A(t) = 450, hence:

It will take about 2.9 years for Emma's balance to reach $450
Learn more about logarithm here
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Dude you didn't even ask a question you literally just asked for help and said for no one with the answer not to answer the question. Did you forget to even ask the main thing you wanted to get answered, cause if you did I can't see it
Answer:
112
Step-by-step explanation:
lol not 100% sure
Answer:
The third one
Step-by-step explanation:
Every single one of them comes out to be negative two except for the third one. It turns positive