-2<x<3   | *2
-4<2x<6       | +7
3< 2x+7< 13
3<10<13
The answer is C
        
                    
             
        
        
        
Answer:
1) 20% change I think its an increase.
If needed I could try to answer the 2nd question but I am sure that I got the first one right.
Step-by-step explanation:
 
        
             
        
        
        
Hmm, I'm confused...
An integer is a whole number. Right now you have +13 yards so I guess the answer is 13, idk for sure, lol.
        
             
        
        
        
<span>Exponent
is a number used to express shorter equation; it is a number that says how many
times you are going to multiply the base number.
</span><span>
Exponents have several laws, here are
some:
=> x^1 = x
=> x^0 = 1
=> x^-1 = 1/x
=> x^m x^n = X^m+n
=> x^m/x^n = x^m-n
And since we were asked to write an
expression with a negative exponent that has a value between 0 and ½
=> 2^ -2 = ½
</span>
        
             
        
        
        
(5,4) simply substitute the values in! they work :) hope it helped