Thank you thank you very much
The Answer would be x=72. Why? Because

is your %. You Cross multiply 240 * 30 = 100x
240 time 30 = 7200. you want x to be alone so you do 7200 divided by 100 equaling 72. So you get x=72.
Well, 99 times 10 is 990, 990 plus 9 is 999. If you understand pls respond
8 because her are the multiples of 8:8, 16 , 24