If 1/5 can for 1 (each) room, then:
for 51 rooms, (51*1/5)=10.2 rooms.
Round to nearest whole number since you can't just paint 0.2 of a room: answer = 10
Answer:

Step-by-step explanation:
Since the equation is parallel, this means that the slope remains the same which is 0.5.
The remaining thing to do is to find b or y-intercept. To do that, the point (6,-2) and the slope of 0.5 will be used.

When solving for b, it will equal to -5.
Therefore the new equation that is parallel is 
Answer:
6a-6n+36
Step-by-step explanation:
-10a-9n+16-30+3n+15a+50+a
Combine a...
-10a+15a= 5a+a=6a
Combine n...
6a-9n+16-30+3n+50
-9n+3n= -6n
6a-6n+ 16-30+50
Combine # w no variable
Answer: 6a-6n+36