Answer:
f
^−1(x)=x/2−1/2
Step-by-step explanation:
Answer:
not a function
Step-by-step explanation:
if any of the x values are the same then it isn't a function
And what else is in the problem I do not get what the problem is
Answer:
The correct option is C. 9 houses could 18 men paint in 6 hours.
Step by step explanation:
Let the number of houses paint by 18 men in 6 hours be x.
One man can paint one house in 12 hours.
The part of house painted by a man in 1 hour is
.
The part of house painted by a man in 6 hour is

The total number of men is 18. Therefore the number of houses painted by 18 men is

Therefore correct option is C. 9 houses could 18 men paint in 6 hours.