It is b because you round to the nearest 100 and I got it right on the quiz
Answer:

Step-by-step explanation:
The given function is

We want to find all values of x for which:
f(x) is greater than or equal to 14.
This implies;

Subtract 13 from both sides;


By definition of the absolute value function,

Divide through the first inequality and and reverse the inequality sign:




490=10·40+15x
490=400+15x
90=15x
x=6
he worked a total of 46 hours
Answer: x-1/6
Step-by-step explanation: