3 times 0.78 = 2.34 dollars
5.00 - 2.34 = 2.66
So your change is $2.66
Answer:
(a) the interest is $6384
Hope this helps!
Answer:

Step-by-step explanation:
The way I did this was I noticed that the graph had a y-intercept of 4 and the only exponential function that had a y-intercept of 4 was