Answer:
The area of the shape (trapezoid) is 55 square feet. 
Step-by-step explanation:
The formula to get the area of a trapezoid is 
 . b1 is one of the bases, b2 is the other and h is the height. 
First, you need to find the average of the bases: 
           (15+7=22)/2=11
Then, you multiply that by the height. 
           11*5=55
Lastly, you add the units. 
           55 square feet is the answer
 
        
             
        
        
        
Investment: cost of her education + salary as sales clerk during two years
Investment = 18,000 (2) + 20,000 = 36,000 + 20,000 = 56,000
Time to recover investment = 56,000/35,000 = 1.6 
In less than two years, after she starts to work Niah will have recoverd her investment. 
        
                    
             
        
        
        
Answer:
see explanation
Step-by-step explanation:
Given
V = πr²h ( isolate h by dividing both sides by πr² )
 = h
When V = 36π , r = 3 , then
h = 
 = 
 = 4 cm
 
 
        
                    
             
        
        
        
Answer:
14
Step-by-step explanation:
3x-8y
(3*10)-(8*2)
30-16
14