Answer: 
Step-by-step explanation:
For this exercise you need to remember:
1) The mulitplication of signs:
2) By definition, like terms contain the same variables with the same exponent.
Then knowing this, and given the equations:
and 
You must subtract the like terms, which means that you must subtract the numerical coefficients of each term.
Then, you get the result is:
Answer: C.Yes, because 3,502.86 is multiplied by the exponential term.
Step-by-step explanation:
3502.86 is the capital
1.15 is the interest
While ( t - 12 ) tells us about the period of time.
And f(t) is the amount of money in Gavin's investment account after t years
Answer:
114
Step-by-step explanation:
It will take 8 minutes.
You use a proportion
5/1=2400/x you use 2400 because 2.4km=2400 meters and u need to use the same unit of measurement.
so cross multiplying gives you 5x=2400 which is equal to 480. BUT this is 48 seconds, and it asks you how many minutes, not seconds. So, you divide by 60 because there are 6 seconds in a minute, and you get 8.
