Which is the area of a circle with a circumference of 37.68 units? (use 3.14 for ) A. 9.42 square units B. 18.84 square units C. 37.68 square units D. 113.04 square units

D

Step-by-step explanation:

First solve for r from the circumference C=2πr

37.68 = 2 x 3.14 x r

37.68 = 6.28r

r = 6

A=πr2

A = 3.14 x 36

A = 113.04

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!