23/30 can't be simplified any further because 23 is a prime number.
First you have to find out the cost of the ticket. To do so you have to Divide 15 and 6. Which equals $2.50. So each ticket is $2.50 dollars. Now you have to multiple 2.50 times 9. which equals 22.5. So your total answer is $22.50 dollars
Answer:

Step-by-step explanation:
The distance is given by the expression![d=\sqrt{(\Delta x)^2+(\Delta y)^2}= \sqrt{[(-2)-(-7)]^2+[(-5)-(1)]^2} = \sqrt{(-2+7)^2+(-5-1)^2}=\sqrt{(5)^2+(-6)^2}=\sqrt{(25+36)}=\sqrt {61}](https://tex.z-dn.net/?f=d%3D%5Csqrt%7B%28%5CDelta%20x%29%5E2%2B%28%5CDelta%20y%29%5E2%7D%3D%20%5Csqrt%7B%5B%28-2%29-%28-7%29%5D%5E2%2B%5B%28-5%29-%281%29%5D%5E2%7D%20%3D%20%5Csqrt%7B%28-2%2B7%29%5E2%2B%28-5-1%29%5E2%7D%3D%5Csqrt%7B%285%29%5E2%2B%28-6%29%5E2%7D%3D%5Csqrt%7B%2825%2B36%29%7D%3D%5Csqrt%20%7B61%7D)
You can't solve for x. Y=mx+b is slope intercept form and is used to graph equations