Let 0.25x is the price increase. Therefore, the number of attendees will be 350-10x and the revenue R=(350-10x)*(5+0.25x)=1750+37.5x-2.5x^2. This parabola has maximum at x=10, meaning the price=7.5
13 should be b and
14 is a because geometric mean to have a common ratio
Answer: $18.90
Step-by-step explanation:
297 is the sum of F and 211
297 = f+211
Yes they are the same because when the negative is distributed into (an+c), the plus sign becomes a negative.
