Answer:

Step-by-step explanation:

Hope this helps.
 
        
             
        
        
        
Can you post the scale drawing please so I can help you
        
                    
             
        
        
        
Answer:  387.93 units
Step-by-step explanation: 
 You have the following information given in the problem above:
 - The sales  had dropped 33% from one quarter to the next. 
 - The owner sold 579 units in the first quarter.
 Thefore, to calculate the number of units she sold in the next quarter (which you can call x), you must can apply the following proccedure:
 
 Then the answer is the following:
 
 
        
             
        
        
        
Answer:
The diver will hit the water at 1.5 seconds
Step-by-step explanation:
Given

Required (Missing from the question)
When will the diver hit the water?
To do this, we simply solve for t
When the diver hits the water, the height is 0 (at that point) 
So, substitute 0 for h in 

Divide both sides by -16




Split
 or
 or 
Solve for t
 or
 or 
But time (t) can not be negative.
So:

Hence, the diver will hit the water at 1.5 seconds
 
        
             
        
        
        
The answer is Every 15 seconds