we know that
cup of flour is used to make
dinner rolls.
Part a) How much flour is needed to make one dinner roll?
by using proportion

therefore
the answer Part a) is
To make one dinner roll is needed
cup of flour
Part b) How many cups of flour are needed to make 3 dozen dinner rolls?
Multiply the value obtained in part a) by 
so


therefore
the answer Part b) is
To make
dozen dinner rolls are needed
cup of flour
Part c) How many rolls can you make with 5 2/3 cups of flour?

by using proportion

therefore
the answer part c) is
rolls
You have to divide 28 divided by 12 equals 2.3%
12a + 7(2000) > = 38000
12a + 14000 > = 38000
12a > = 38000 - 14000
12a > = 24000
a > = 24000/12
a > = 2000 <==== at least 2000 alumni would have to buy tickets
Answer: The company must sold 382 units to break even.
Step-by-step explanation:
Hi, there is no question asked, so I suppose that you need to find the number of items (x) to break even.
To answer this question we have to equal both sides of the equations:
Since costs equal its income:
C=R
So:
38x +19100= 88x
Solving for x
19100= 88x-38x
19100=50x
19100/50 =x
382=x
The company must sold 382 units to break even.
Feel free to ask for more if needed or if you did not understand something.
Answer: f(a-2) = 2a² - 14a + 28
Step-by-step explanation:
f(x) = 2x² - 6x + 8
you can take a-2 and substitute it for each x, which would look like this:
f(a-2) = 2(a-2)² - 6(a-2) + 8
then distribute those in ( )
f(a-2) = 2a² - 8a + 8 - 6a + 12 + 8
combine like terms
f(a-2) = 2a² - 14a + 28