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.
[((S*55.61)*(C*0.7+R*0.04+0.4)/A)]/. {S -> 1.383, C -> 1.67, R -> 6, A -> 1}
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random