Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
((530+.89(4))/1326)(.2089(.4397(40)-20)+.7911(1))-((792+.11(4))/1326)(.5)
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random