The number of pairs of shoes sold s (in thousands) increases and
then decreases as described by the function
s(t) = -2t - 15 + 50, where t is the time
(in weeks).

answer: an 8-foot rope is tied from the top of a pole to a

stake in the ground, as shown in the diagram

below

step-by-step explanation:

the answer is:

the correct option is the option b.

to calculate the surface area of the right cylinder, we need to use the following formula:

from the picture we know that:

so, substituting and calculting we have:

hence, we have that the correct option is the option b.

have a nice day!