The surface gravity of Mars is 3.7 m/s².  On Earth it is 9.8 m/s².  3.7/9.8 = 38%.
So 38% of 120 lbs is 45 pounds.
 
        
             
        
        
        
Answer:
C.) 2
Step-by-step explanation:
<em>You must use the pythagorean theorem</em>
the distance on the x axis (or a) is 6
the distance on the y axis (or b) is 10
 = 136
 = 136 
 = 2
 = 2
 
        
             
        
        
        
The answer for -2.5x-10=40 would be:
x = - 20.