Because a rectangular pyramid's base is square, the cross section would be as well
 
        
        
        
Answer:
1. $82,500
2. 169 : 110
Step-by-step explanation:
The computation is shown below:
Given that 
1. Ratio between two computers is 3:2
And the first computer cost is $55,000
Let us assume the price of the second computer be x.
As we know that 
Product of extremes = Product of mean.
2 : 3 :: 55000 : x .
Now cross mutiplication is to be done 
2x = $55,000 × 3
x = $1,650,000 ÷ 2
 = $82,500
2. Now if the price of the 2nd computer rised by $2,000
So the new cost would be 
= $82,500 + $2,000
= $84,500
Now the ratio would be 
= $55,000 :  $84,500
= 169: 110
 
        
             
        
        
        
Do 40 times 12 because if she can type 40 words each minute and there is 12 minutes then it would be 480