Sara bought a computer that was originally priced at $896. The computer was for 12% off. When she bought the computer, a 7% tax added to the sale price. How much did Sara spend on the computer?

Read the excerpt from the strange case of dr jekyll and mr. hyde what do dr. jekyll's thoughts reveal about him in this excerpt? [t]he inmates of my house were locked in the most rigorous hours of slumber, and i determined, flushed as i was with hope and triumph, to venture in my new shape as far as to my bedroom. i crossed the yard, wherein the constellations looked down upon me, i could have thought, with wonder, the first creature of that sort that their unsleeping vigilance had yet disclosed to he is jealous of those who can sleep through the night. he is revered for his scientific advances. he is interested in studying the movements of the stars he is proud and enthusiastic about his initial results.

Ineed with math stuff it involves graphs

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)