The interest she would pay is $694.40. 
<h3>What is simple interest?</h3>
Simple interest rate is the interest that is paid only on the principal portion of a loan. This means that the debtor does not pays interest on the interest rate already accrued.
<h3>What interest does she pay? </h3>
Simple interest = principal x time x interest rate
$6200 x 4 x 0.028 =  $694.40. 
To learn more about interest, please check: brainly.com/question/26164549
 
        
             
        
        
        
Answer:
The air is .6m^3
Step-by-step explanation:
The volume of a cube is 
V = s^3 where s is the side length
The volume of the tank is 
V = 1^3 = 1 m^3
The volume of the water is 1 by 1 by .4
V = l*w*h
    = 1 *1*.4
    = .4 m^3
The difference must be filled by air
1- .4 = .6 m^3
The air is .6m^3
 
        
                    
             
        
        
        
Yeah what he/she said 29,000,000
        
             
        
        
        
Answer:
13x^2 - 18x + 9
Step-by-step explanation:
<u>Step 1:  Distribute the plus and minus signs</u>
(4x^2 - 5x + 6) + (9x^2 - 2x) - (11x - 3)
4x^2 - 5x + 6 + 9x^2 - 2x - 11x + 3
<u>Step 2:  Combine like terms</u>
4x^2 <u>- 5x</u> <em>+ 6</em> + 9x^2 <u>- 2x</u> <u>- 11x</u> <em>+ 3</em>
13x^2 - 18x + 9
Answer:  13x^2 - 18x + 9