B. Fiscal Policy. Hope that helps you. 
        
             
        
        
        
A triangle has 3 angles.
The sum of the measures of the angles of a triangle is 180.
In an equilateral triangle, all angles have the same measure.
180/3 = 60
Answer: 60 degrees.
        
             
        
        
        
Answer:
7 hours 30min 
Step-by-step explanation:
Step one :
Given data 
We are told that Erica can paint 1 room in 5hours 
Her work rate is 1/5 room per hour 
And also with the assistance of her friend they can paint 1 room in 3 hours 
Hence their combined work rate is 1/3 room per hour
Step two 
The combined work expression is
1/A+1/B=1/T
Where A=Erica's work rate
B=Rachael's work rate
T=combined work
1/5+1/B=1/3
1/B=1/3-1/5
1/B=5-3/15
1/B=2/15
B=15/2
B=7.5 hours
It will take Rachel 7 hours 30min to paint the room 
 
        
             
        
        
        
Answer:
-54
Step-by-step explanation:
Substitute the numbers for the variables. 
-(5)+7(-7)
=-5-49
=-54