Answer:
14
Step-by-step explanation:
Jack drove 278.2 miles on 19.6 gallons of gasoline. then
278.2 miles - 19.6 gallons
x miles - 1 gallon
Write a proportion:

Cross multiply:

 
        
             
        
        
        
Answer:
the 3rd one x+2=5 
Step-by-step explanation:
Why? 
because you are going from small # to a bigger # so you know you are adding 
there is 2 there and it says that it = 5 
 
        
             
        
        
        
The following statements are true for a parallelogram that must be a rectangle.
 parallelogram with a right angle
 parallelogram with congruent diagonals
A Parallelogram is a flat shape with opposite sides parallel and equal in length. Squares, rectangles and rhombuses are all parallelograms but with slight differences.