Answer:
30 hours is the right answer
A and d is the one I would pick
You gave no options but the simplest way to solve this is to set it equal to all of the answers to see if it is correct.
Slope (m) = 1
Y-intercept (b) = -4
Formula: y = mx + b
To put it in the y=mx+b formula, you just have to plug it in so the answer would be...
y = 1x + -4
Hope that helped
