Answer:

Step-by-step explanation:



Answer:
.
Step-by-step explanation:
Let C represent total daily charges in dollars and t represent time in hours.
We have been given that a plumber charges $50 for a service call plus $80 per hour.
The amount charged for t hours would be
.
The total amount charged for t hours would be
.
We are also told that plumber spends no longer than 8 hours a day at any one site, this means that time t have a restriction as:

Therefore, our required cost function would be
.
Insert the symbol < or > to make the statement true.
a) >
b) <
c) <
d) >
Replace each ? with the symbol = or ≠ to make the statement true.
a) ≠
b) =
c) =
d) ≠
Which zero though? Please specify and then I’ll answer in the comments
Answer:I did this one and its 0.75
Step-by-step explanation: