Answer:
-- Acme
--- Bell
Step-by-step explanation:
Given
Acme:


Bell:


Required
Determine the cost function for both
The cost function can be determined using the following illustrations:
Daily Rate + Hourly Rate * Number of Hours
Represent the number of hours with x
So, we have:
For Acme:


For Bell:


With this problem you just look at the graph and answer it that way. Look at where the heart rate is at its max and then look at the beginning and end, the shape of the graph. Then answer the question.
Pitch changes are heard when the doppler effect occurs should be the answer. I'm pretty sure.
Answer:
s = 2/3t
Step-by-step explanation:
For some time (t) in minutes, Sarah can iron "s" shirts:
s = (12/18)t
s = 2/3t
_____
If you need to, you can start with a proportion:
shirts/minutes = s/t = 12/18
Then multiply by t to get the above equation.