PLEASE HELP! Explain how performing operations in an expression with only percent's is different than performing operations in an expression that has both percents and decimals.

Which is f(5) for the function –2x2 + 2x - 3?

(x-5)1/2+5=2 what is possible solution of this equation

Find the measure of angle y. round your answer to the nearest hundredth. ( type the numerical answer only) a right triangle is shown with one leg measuring 5 and another leg measuring 14. an angle across from the leg measuring 5 is marked y degrees. numerical answers expected!