Answer:
Step-by-step explanation:
Given that a company fixed costs are 400 dollars
and variable cost =
per unit and x the no of units produced
Selling price =
per unit
a) Break even units
At break even units selling price = variable cost

Break even units = 76
b) Revenue = Sales - total costs
= 
Use derivative test to get max revenue
R'(x) = 
R"(X) <0
So maximum when I derivative =0 or when

x=38
c) price when x =38 is

Answer:
Ben can type 510 words in 10 minutes.
Step-by-step explanation:
The relation between the number of words typed and the minutes is direcltly proportional, that is, with Ben type more minutes, he will end up typing more words.
Thus, we can use the rule of three:
words | minutes
153 --- 3
x --- 10
Now, we can just cross multiply them:


Thus, Ben can type 510 words in 10 minutes.
Answer: 
The upside down V symbol is known as a wedge. It represents a conjunction which is informally the "and". In other words, 
Note how we can replace p with "the taxes are high" and replace q with "the job pays well" to arrive at the overall compound statement "The taxes are high and the job pays well".
Some logic textbooks will use an ampersand symbol & to be used in place of a wedge. It will depend on the notation that they, or your teacher, has set up.