I find it easier to do the actual computation than to try to choose the correct answer from a bunch of alternatives.
You are given the area of a rectangle, as well as the length of one side.  To find the length of the other side, you must divide the given side length into the area.
Thus, the unknown side length is
1.403E(-2) cm^2
-----------------------  =  0.23E2 cm, or, better, 2.3E1, or 23 cm
6.1E(-4) cm
Now that you have this info, which of the given four steps do you judge to be appropriate and which inappropriate?
        
             
        
        
        
3 out of 12 areas are filled. so that is 25% and 0.25 in decimal form. <span />
        
                    
             
        
        
        
Multiply the two desired probabilities to find the answer.
5/12 is the probability for the plain pencil since there are 5 pencils out of 12 total items.
1/2 is the probability for the colored pencil since there are 3 colored pencils out of 6 total items. 3/6 simplifies to 1/2.
5/12*1/2= 5/24
Final answer: 5/24
        
             
        
        
        
let the exterior angle be x
x=60°+80°(being one exterior angle is equal to two interior angle)
x°=140°
 
        
             
        
        
        
Answer:
they need to sell 15,000 because 42 percent of 15,00 is 6,300+2500=800
the inequality should be. 2500+0.42s≥8,800
and the number line should have a closed point on 15,000 with the line pointing to the right