The statements aren't given; however the number of 1/2 and 1/4 - pound package have been calculated below. 
Answer:
Step-by-step explanation:
Given :
A 12 pound block :
Number of 1/2 pound packages that can be obtained :
12 ÷ 1/2 ;
12 * 2/1 = 24 (1/2 - Pound package) can be obtained.
Number of 1/4 pound package that can be obtained :
12 ÷ 1/4
12 * 4 /1 = 48 (1/4 - Pound package) can be obtained
We can obtain twice the number of 1/2 - pound package by using the 1/4 - pound slicing. 
 
        
             
        
        
        
Answer:
x = -2, 3.
Step-by-step explanation:
x^2 - x - 6 = 0
(x - 3)(x + 2) = 0
x = -2. 3.
 
        
             
        
        
        
Answer:
Step-by-step explanatio............................................
 
        
             
        
        
        
There's an infinite number of equivalent fractions for 24/30 - all you need to do is to divide or multiple both numerator and denominator by the same number. For example:
24/30 = 48/60 (because 24 * 2 = 48 and 30 * 2 = 60)
24/30 = 12/15 (because 24 ÷ 2 = 12 and 30 ÷ 2 = 15)
24/30 = 72/90 (because 24 * 3 = 72 and 30 * 3 = 90)
24/30 = 4/5 (because 24 ÷ 6 = 4 and 30 ÷ 6 = 5)
etc...
        
             
        
        
        
Answer:
x=5 twice
Step-by-step explanation:
x^2-10x+25=0
multiply the coefficient of x^2 and the last term
1X25=25
find two numbers you can multiply to get 25 and add to get -10
-5 + (-5)=-10 the middle term
replace -10x with -5x -5x and solve the equation
x^2-5x-5x+25=0
factorise by grouping
x(x-5)-5(x-5)=0
(x-5)(x-5)=0
Either x-5=0,x=5 or x-5=0,x=5
Therefore x=5 twice.