Answer:
yes
Step-by-step explanation:
 
        
             
        
        
        
Half of R is shown as 20 degrees, so the other half of r is also 20 degrees.
 A tangent line forms a right angle, so the tangent at P is 90 degrees.
 X would be 180 - 90 - 20 = 70 degrees.
X = 70 degrees.
 
        
             
        
        
        
Answer:
4.5 hours
Step-by-step explanation:
distance equals rate times time, a relationship that can be solved for time:
time = distance / rate
Here the time is (135 miles) / (30 mph) = 4.5 hours
The bus requires 4.5 hours to get to the museum.
 
        
             
        
        
        
Comment
I'm going to take a guess at this and say what you meant is  2401 = 7^(6 - 2x)
Step One
Find out the power of 7 that will equal 2401. 
You could do it like this.
7^y = 2401 and just guess at some values.
y      7^y
1      7
2      49
3      7 * 7 * 7 = 343
4      7 * 7 * 7 * 7 = 2401  So the answer is 4
7^4 = 2401
Step 2 
Equate the powers.
2401 = 7^(6 - 2x)
7^4 = 7^ (6 - 2x)
4 = 6 - 2x  Subtract 6 from both sides.
4 - 6 = - 2x 
-2 = - 2x divide by - 2
-2/-2 = x
x = 1 <<<<<<<<<<<<<answer