Answer: 31500 to 38500
Step-by-step explanation:
Lets find lower limit of guess
35000 - ( 35000 * 10% )
= 31500
Upper limit of guess
35000 + ( 35000 * 10% )
= 38500
So your guess can be anything between these two values.
 
        
             
        
        
        
Answer:
D
Step-by-step explanation:
none of the option satisfy the equation
 
        
             
        
        
        
She will need 12 seconds because -20•12=-240