Answer:
C. 
Step-by-step explanation:
The function t, where
represents the amount of money Fernando earns given the number of hours, x, he works.
The domain of the function
are all possible values for x.
It is known that Fernando works between 12 and 25 hours each week, so the number of hours, x, he works satisfies the inequality

I’m not very good at explaining but if we explain from the beginning the equation is y=m(x)+b and m means the slope while b means y- intercept so all you have to do is substitute these variables with the numbers in the problem basically it would be y=10x+10 also the picture attached is how you graph it. Hope this helped:)
Answer: Divide both sides by the numeric factor on the left side, then solve.
Exact Form: x= −83/2
The answer is 79.8 =D Hope I could help