Let
x-------> the cost of each pepperoni pizza
y-------> the cost of each cheese pizza
z-------> the cost of each Hawaiian pizza
we know that
------> equation A
-----> equation B
-----> equation C
Substitute equation B and equation C in equation A
solve for x
therefore
<u>the answer is</u>
Answer:
-3, -1, 1
Step-by-step explanation:
The values of x when f(x) = 0 are the points on the graph when the curve intercepts the x-axis.
From inspection of the graph, the curve intercepts the x-axis at
x = -3, x = -1 and x = 1
Your pay is described by a piecewise function p(t) where t is hours worked.

The domain of this function is the number of hours you can work in a week—zero to 168. The range is the set of values p(t) can take on, which we have said is p(0) to p(168). This problem, however, is asking for the range for a typical 40-hour week. That will be p(0) to p(40):
the interval [0, 280].