Refer to attachment for your answer
In this problem, I would say 7.16 to the nearest 10th would be 7.20 because 16 is closer to 20 then 10.
Multiply the Day with 9
1 x 9 = 9 (True)
2 x 9 = 18
3 x 9 = 27
4 x 9 = 36
5 x 9 = 45
6 x 9 = 54
7 x 9 = 63
63 minutes is your answer
hope this helps
Given:
The function is:

Where y is the sales of lawn mowers t years after a particular model is introduced.
To find:
How many mowers will be sold 3 years after a model is introduced?
Solution:
We have,

Substituting
, we get



On substituting the approximate value of ln(31), we get



Therefore, the 18887 mowers will be sold 3 years after a model is introduced.