Answer:
5x2
Step-by-step explanation:
x(5x)
=x*5*x
=5*x2
=5x2
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
1/5 + 1/5 = 2/5
1/7 + 1/7 = 2/7
1/3 + 1/3 = 2/3
There are an infinite number of these fractions. They must be 1 and 1 in the numerator, and the denominator must be relatively prime  to 2. The examples I have picked are prime in the denominator, but the rule is not without many exceptions. For example
1/9 + 1/9 = 2/9
I don't think you can pick an even denominator because it will reduce when put with two.  Oh wait 2/18 + 2/18 = 4/18 = 2/9 But these could be reduced before adding. Still, it might count. It depends on who is marking the question.
What about an odd and even denominator?
1/9 + 1/18 = 3/18 = 1/6  There must be something that works, but I can't come up with an example. 
 
        
             
        
        
        
I believe the answer is $144
Because you first have to multiple 8ft*3 ft=24ft then you have to multiply 24ft times $6=$144
        
             
        
        
        
Answer:
Yes 
Step-by-step explanation:
I had this same question on a quiz and it is correct!
 
        
             
        
        
        
Answer: a. (0, -300), (1, -180), (2, -60), (7, 540) 
b. T=120D-300 
c. $28080
Step-by-step explanation:
a. T=120D-300 ==> per week
D=0: T=120(0)-300
D=0: T=-300 ==> (0, -300)
D=1: T=120(1)-300
D=1: T=120-300
D=1: T=-180 ==> (1, -180)
D=2: T=120(2)-300
D=2: T=240-300
D=2: T=-60 ==> (2, -60)
D=7: T=120(7)-300
D=7: T=840-300
D=7: T=540 ==> (7, 540)
b. T=120D-300 
c. T=120(7)-300
T=840-300
T=$540 per week
1 year = 52 weeks
540*52=$28080