Umm manages a cafe that typically sells 240 cups of coffee per day for $2 each. sully knows that for each $0.25 increase in the price of coffee, 20 fewer cups of coffee will be sold. let x represent the number of $0.25 price increases and f(x) represent the total revenue earned from coffee sales.

We need to write f(x), the revenue as a function of the price increase. When x=0 the coffee price is $2, unit sales 240, and revenue 2(240)=$480. When x=1 the coffee price is $2.25, unit sales 220 and revenue 2.25(220) =$495.

In general the coffee price is 2 + 0.25 x and the unit sales are 240 - 20 x. The revenue is the product:

That's the function for the first blank; other variations are possible.

The second blank must be "maximum;" -- why else would Sully do this?

Not sure if we're in calculus or algebra here; for calculus we'd maximize by setting the derivative to zero and solving for x; in algebra we'd complete the square. Let's complete the square.

At x=2 the squared term is zero so we're at our maximum of -5(-100)=$500

That's revenue ... will be $500 after 2 quarter price increases.

0.85 or 85%

step-by-step explanation:

1) divide 23 by 27

2) round the decimal to the nearest 10

3) so your answer would be 0.85 or 85%

1e+27

step-by-step explanation: