Answer:
The answer is B.-3/2
Please correct me If I am wrong
Step-by-step explanation:
I use 
Also, you automatically know that the line is decreasing
Multiply the first equation by -1
-3x-y=-4
2x+y=5
Add them up
-x=1
So x=-1
And y=7
So the first option is correct
The same would be the right one
The answer is 38.8 repeating. Might as well just round it
Answer:
26.6667 minutes or 0.444 hours per activity.
Step-by-step explanation:
If he spent an equal amount of time on each activity, then it would have to be divided equally: 4hours/9
In minutes:
4 x 60 = 240 minutes
240/9
26.6667 minutes per activity.
In Hours:
4/9
0.444 hours per activity.