If 

 were incorrect, it means that 

 were correct

There were 28 problems ;)
 
        
        
        
Answer:
$11,480
Step-by-step explanation:
1,400 x 0.9 = 1,260
1,260 x 8 = 10,080
1,400 + 10,080 = 11,480 
 
        
             
        
        
        
Please excuse my sloppy writing but the answer is 30
 
        
        
        
Hello : 
the nth term is :  An =A1 × r^(n-1)
A1 = 1      r = 2.3     n = 5
 A5 =1 × (2.3)^(5-1)=27.9841
 
        
        
        
The slant height of the pyramid can be calculated using Pythagoras theorem. Therefore, the slant height is 6.7 mm
<h3>How to find slant height of a pyramid?</h3>
The slant height x, can be found using Pythagoras theorem,
Therefore,
c² = a² + b²
where
- c = hypotenuse
- a and b are other two legs.
Therefore,
x² = 4.5² + 5²
x² = 20.25 + 25
x² = 45.25
x = √45.25
x = 6.72681202354
x = 6.7 mm
learn more on pyramid here: brainly.com/question/11805304
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