Answer:

Step-by-step explanation:
hello
we need to compute the following

hope this helps
For this case, the first thing we must do is define variables.
We have then:
t: the time in minutes
k: the number of kilometers
The relationship between both variables is direct.
Therefore, the function is:

Where, "c" is a constant of proportionality.
To determine "c" we use the following data:
After running for 18 minutes, she completes 2 kilometers.
Substituting values:

Clearing c we have:


Then, the equation is given by:

Answer:
An equation that can be used to represent k, the number of kilometers Julissa runs in t minutes is:

It applies because interest slowly increases the amount of money gained. IF you have any Tolkien related questions, feel free to ask me
Answer:
The best option for him would be a real interest rate of 5%.
Step-by-step explanation:
The nominal interest rate is the one that represents the percentage of increase of the money that is in a certain investment, without discounting the depreciation due to inflation or the payment of taxes.
On the other hand, the real interest rate is the one that represents the real increase in the money invested, after discounting inflation and any taxes to be paid.
Therefore, the best option for Oscar would be to invest his $ 4,000 in a savings account with a real interest rate of 5% per year.