70 feet.
If you're 30 feet from the base, then you have to climb that 30 feet, plus the 40 foot length of that building. (:
        
             
        
        
        
4:10 is the time that the class ends, I think that's what you meant?
        
                    
             
        
        
        
80 is correct. 
-440+360 = 80
        
                    
             
        
        
        
Answer:
6y+4
Step-by-step explanation:
-(2x-3y) +5x +2 -3x +3y +2
(-2x -3x +5x) (3y +3y)  (2 +2)
0 +6y +4
6y +4
 
        
             
        
        
        
Answer:
the area is 52.49
Step-by-step explanation:
triangle
radius is 3.5
3.5x19=66.5÷2=33.25
hemisphere
π3.5squared=38.48
38.48÷2=19.24
33.25+19.24= 52.49