A local coffee shop charges $4 for a cup of coffee and sell 30 cups per day. They determine that every time they decrease the price of a cup by $0.20 they sell 3 more cups of coffee
per day. What should they charge for a cup of coffee to maximize their profits?

not enough information

step-by-step explanation:

we cannot know this, because the other students could have handed out 10 flyers, or they could have handed out 100. one way, the mean would go up, and another way, the mean would go down.

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

answer: i believe it is c

step-by-step explanation:

because 5+4=9 so it would be 3^9