Answer:
35 acres.
Step-by-step explanation:
Proportions:
15. 8 ⇒ 1 acre
553 ⇒  P acres
P = 553*1/15.8
P = 35 acres
 
        
             
        
        
        
 Solve the parenthesis firt. 
17-9 = 8 
3*2 = 6    now multiply 6 by 8 that equals 48
now divide 48 by 2
48÷2= 24
        
                    
             
        
        
        
The function in vertex form is 

 (refer to your other post I solved it there).
The general form of quadratic equations in vertex form is 

, where (h, k) is the vertex of the parabola.
Here, a = 1, h = -6 and k = -54
Therefore, the vertex is (-6, -54) and it is a maximum because a = 1 is postive.
 
        
        
        
Q cuts the diagonal PA into 2 equal halves, since the diagonals of rhombus meet at right angles.
<u>Step-by-step explanation:</u>
As given by the statement in the problem, 
Q may be the middle point, which cut the diagonal PA into 2 equal halves.
In rhombus, diagonals meet at right angles.
which means that PQ = QA 
x+2 = 3x - 14
Grouping the terms, we will get, 
3x -x = 14+ 2 
2x = 16 
 dividing by 2 on both sides, we will get, 
x = 16/2 = 8 
8+2 = 3(8) - 14 = 10 = PQ or QA