12+4(8x-1) please help

Find the value of x that will make l ll m

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

Which question is not a good survey question? a. don't you agree that the financial crisis is essentially over? 63on average, how many hours do you sleep per day? c. what is your opinion of educational funding this year? d. are you happy with the availability of electronic products in your state?