Answer: C
Explanation: We need to combine like terms, which means 7a and -12a and -8 and 4
7-12=5 and -8+4=-4

3,000 Minutes is your answer.........
As a decimal it is equivalent to 0.5
As a fraction it can be equivalent to 2/4, 3/6, 4/8, 5/10 and so on. Hope this helps :)
Y = -1/2x + 3
Why?
Looking at the line start where the line intercepts the y line, it goes down one over 2 and that’s your slope, the 3 is bc that’s where the line crosses the y line