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 (35+x)(60-x), x:12 to 13 axes label "x" "R"
plot (35+x)(60-x), x:12 to 13 axes label "x" "R"
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
