Answer:
x=19º
x+9=28º
7x=133º
Step-by-step explanation:
x+9+x+7x=180
9x+9=180
9x=180-9
9x=171
x=19
 
        
                    
             
        
        
        
Well we have the equation d = r * t  
(d stands for distance, r for rate, and t for time)
So, plug in our values:
d = 55 *4
And, d = 220
I can't see the answer choices, but I hope this will help you!! Let me know if you have ANY questions.
        
                    
             
        
        
        
Answer: x = 1/16
Step-by-step explanation: 
Since the inverse of a Logarithm is an exponential function, we know that the final solution has to involve an exponential function somewhere in it. 
 1. log B(2) {x} = -4  || given
 2. x = 2 ^ -4  || Logarithm rule that allows you to move the base of the logarithm to the base of the exponent on the other side. For example, if you had log B(5) {x} = 3, the base of 5 would move over to the other side and it would be raised to 3; x = 5^3.
 3. x = (1) / (2^4) || Simplify. Use the negative exponent rule. This rule always leaves a numerator of 1, and a denominator of your exponent. In this case, it will be 2 ^ -4, so you will do 2^4 which is 16 and you will put that over 1. Resulting in your final answer of x = 1/16
 
        
             
        
        
        
 2pt=1qt
1pt=1/2qt
therefor
multiply 2 and 3/4 by 1/2
(2 and 3/4) times 1/2=(2+3/4) times 1/2=2 times 1/2+3/4 times 1/2=2/2+3/8=1+3/8=1 and 3/8 pt