Answer:
58.9% produced produced peppers weighing between 13 and 16 pounds.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 15
Standard Deviation, σ = 1.75
We are given that the distribution of weight of peppers is a bell shaped distribution that is a normal distribution.
Formula:

P(peppers weighing between 13 and 16 pounds)

58.9% produced produced peppers weighing between 13 and 16 pounds.
The lateral surface area of a cylinder is just the long side connecting the bases, whereas the total surface area includes both the lateral surface area and area of the two circular bases.

(Imagine a rectangle with the circumfrence of the base as one side and the height as the other being folded around)

(Plus the area of two circles)
The literal difference between surface areas would be the two bases 2πr² if you need that.
You add 7+5 together to get 12, then you multiply 12 by 6 and get 72, then you add the 3 to 72 and get 75. 6(7+5)+3. Hope this helps with the problem!!