Answer:
Option A : y = 40x - 85 is the correct answer.
Step-by-step explanation:
Given that: 
Cost of purchasing supplies = $85 
Cost charged for cleaning a pool = $40 
Let, 
x be the number of pools cleaned. 
y be the profit 
Profit = Cost of pools cleaned - purchase price of supplies 
y = 40x - 85 
Hence, 
Option A : y = 40x - 85 is the correct answer.
 
        
             
        
        
        
Answer:
Translation: One day on one of the school blackboards a Divide the blackboard into four equal parts, so that each one has a 1, a 2, a 3 and a 4
Step-by-step explanation:
So what am I answering here?
 
        
             
        
        
        
Answer: 
Step-by-step explanation: half in is the answer your probably looking for in APEX.
 
        
             
        
        
        
 A(−3,−2), B(−2,2), C(2,−2)
The orthocenter is the meet of the altitudes. We see AC is parallel to the x axis so the perpendicular  is the altitude through B.
 is the altitude through B.
Between A and B we have slope (2 - -2)/(-2 - -3) = 4 so perpendicular slope -1/4 through C(2,-2):

For the y coordinate of the orthocenter we substitute in x=-2.


So the orthocenter is (x,y)=(-2,-1)
Answer: (-2,-1)
 
        
             
        
        
        
Answer:
8 pounds
Step-by-step explanation:
6 pounds of hamburger x 7 days a week = 42 pounds of hamburger used
50 - 42 = 8 pounds of unused hamburger at the end of the week