Answer:
1.  ft    2.
 ft    2.  yards     3.
 yards     3.  units.
 units.
Step-by-step explanation:
Pythagorean's Theorem 
A and b are both side lengths, c is the hypotenuse.
7^2 + 5^2 = 74
sqrt(74) is the answer for 1.
30^2 - 5^2 = 875
Simplify the radical. sqrt(875) --> 5sqrt(35). The answer for three.
There's a rule in geometry that says a diagonal of a square is the same length as taking a side length times the square root of two. There's your answer for two.
 
        
             
        
        
        
The answer should be A. 4.5
Because line x is just over half of the length of the line that is 8ft
        
             
        
        
        
Answer:
D
Step-by-step explanation:
for example point (2,0) is one of the solutions. 
=> x + 2y <4
2+ 2(0) = 2 => 2< 4 (true)
=> 3x – y > 2
3(2)-0= 6 => 6>2 (true)
so, the option D is the correct one