Lila jumped 5 feet. 
8 1/3-2 2/3=5 feet
        
                    
             
        
        
        
Answer:
it would be 
B. y + 5 = 2(x + 6) 
if there is a negative number and you are subtracting it turns positive 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
   ∠a = 39°
   ∠b = 129°
Step-by-step explanation:
Vertical angles are congruent. An exterior angle of a triangle is equal to the sum of the remote interior angles.
<h3>Application</h3>
Angle y and angle 'a' are vertical angles, so congruent.
   ∠a = ∠y = 39°
The angle marked 'b' is an exterior angle to the triangle. Its remote interior angles are 'a' and the one marked 90°.
   ∠b = ∠a +90° = 39° +90°
   ∠b = 129°
 
        
                    
             
        
        
        
Answer:
-37.5 m
Step-by-step explanation:
If we assume that "one full day" is 24 hours, then 15 hours represents the fraction 15/24 of a day. Since the drilling rate was constant, and was presumed to start from a height of 0, the height after 15 hours is that fraction of the day's work:
... (15/24)×(-60 m) = -37.5 m