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
.
Answer:
25 + 6v
Step-by-step explanation:
Simplify the parentheses:
9 + 2(8 + 3v)
Distribute:
9 + 16 + 6v
Combine like terms
25 + 6v
Answer:
29 / 37
Step-by-step explanation:
The distance between a point (p, q) and a line ax + by + c = 0 is:
d = | ap + bq + c | / √(a² + b²)
Here, a = 12, b = 35, c = 5, p = 2, and q = 0.
d = | (12)(2) + (35)(0) + 5 | / √(12² + 35²)
d = 29 / 37
Answer:
B
Step-by-step explanation: