Answer:

Step-by-step explanation:
So, for 60 square feet they charge = 287
So, for 1 square foot they charge = 
If they charge the installation fee this becomes = 
We can write an equation to calculate cost by using this 
Where x is the amount of square foot
 
        
             
        
        
        
Answer: Choice A) cone
One way to picture this is to think of a propeller. As the propeller spins, it carves out a 3D space even though the blade is "2D" in a sense. 
If we spin everything around segment BC, we get a 3D cone forming. The base of the cone is vertical and it has a radius of AC. The height of the cone is segment BC. It might help to rotate the paper 90 degrees clockwise so that BC is vertical.
 
        
             
        
        
        
40%=0.4
0.4+1=1.4
4.5(1.4)=6.3
The answer is $6.30
        
             
        
        
        
Answer:
see the procedure
Step-by-step explanation:
The situation could be
Alice needs to divide 1/4 pound of meat into three equal parts. What is the weight of each part?
so
Divide 1/4 by 3

The weight of each part is 