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.
plot (220-x)*0.65,(220-x)*0.85 from 15 to 60
plot (220-x)*0.65,(220-x)*0.85 from 15 to 60
Natural Language
Math Input
Extended Keyboard
