First, we need to add 2/6 and 2/5. 
2/6 can be simplified to 1/3
We need to have 1/3 and 2/5 have the same denominator. 3 and 5's LCM (least common multiply) is 15. 
Multiply both the numerator and denominator of 1/3 by 5. This equals 5/15. 
Multiply both the numerator and denominator of 2/5 by 3. This equals 6/15. 
5/15 plus 6/15 is 11/15. This means that Jack's 6000 dollars is 4/15.
Let's say that x is the total amount invested by all three. 
6000/x would equal 4/15. 
Solve this by multiply 6000 by 15 and 4 by x and making these two equal each other. 
90000 would equal 4x. Divide both sides by 4 to get x. 
90000 divided by 4 would be 22500. 
4/15 is the fraction by Jack 
22500 is the total amount invested by all 3
 
        
             
        
        
        
A.
(64x<span>² + 96x + 36) / (16x + 12)
= 4(16x</span><span>² + 24x + 9) / 4(4x + 3)
= 4*(4x + 3)(4x + 3) / 4(4x + 3)
= 4x + 3
b.
1.79 x 10^5 = 1.79 * 100,000 = 179,000
c.
(5.9736 x 10^24) + (4.8685 x 10^24)
= (5.9736 + 4.8685) x 10^24
= 10.8421 x 10^24
= 1.08421 x 10^25</span>
        
             
        
        
        
Answer : The angles are vertical angles and the value of x is 
Step-by-step explanation :
Adjacent angles : It is defined as the two angles that have the common arm and common vertex.
Vertical angles : It is defined as the two lines intersect each other and form angles. The opposite angles are known as vertically opposite angles.
And we know that the vertically opposite angles are equal.
In the given image, the angles are vertical angles and vertically opposite angles are equal.
So,






Therefore, the angles are vertical angles and the value of x is 
 
        
             
        
        
        
It 5 hope it helps you have a good night