7th grade math

If you post an example of your problem, I'll be glad to help you with it.

What percent of 143 is 26? Round your answer to the nearest tenth

26/143 = x
0.1818 = x 
HOw do you solve on like this?
86 is 45% of what number? 
0.45x = 86
Solve for x. 
I still do not understand but thanks for your help.

Well, do you want me to give you a couple more examples or its not needed Jessie.

Ms. Sue!
Please do not waste your time trying to help me.
If you can see...
I am trying to be polite here. 
What a rude kid you are?

What ever!
P.s. I do not care if I spelled whatever wrong. 
Are you ...
NEVER MIND 
Oh my gosh, I'm dying of laughter. Jessie, why don't you stop being a little snot and pay attention in class.
26/143 = x/100
You crossmultiply
26*100=143*x
2600=143*x
Then you find x, as Ms.Sue tried so nicely to explain to you, by dividing 2600 by 143 (2600/143) which gives you the answer you're too lazy to even google. Tadah!