Answer:
The shop can cut the cost of production per sandwich to $3.75. The revenue function would then be defined as R(x)=9x.
Step-by-step explanation:
We want to make as big profit as possible by making as little sandwiches as possible. This means that we want the profit, which is
to be as big as possible.
For the first choice the profit per sandwich is
dollars.
For the second choice the profit per sandwich is
dollars.
For the third choice the profit per sandwich is
dollars.
We see here that for the second choice the profit is greatest, therefore this choice is most suitably correct.
Answer:

Step-by-step explanation:
The measure of arc which the right triange cuts from the circle is
this means the central angle has the same measure.
Angle with measure
is inscribed angle subtended on the given arc. Its measure is half the measure of the central angle, hence

Angles with measures
and
are complementary angles (add up to 90°), so

Answer:325,000
Step-by-step explanation:
4 gets rounded up to 5 because of the 6 next to it.