Baking soda to neutralize the acid and then hot soapy water to get it off of your skin.<span />
A
The formula for finding for finding your maximum heart rate is subtracting your age from220
It would be the last answer I believe
Wear long sleeved clothes like long pants and long sleeved shirts. Wear sunscreen. Wear a hat. Don't stay outside for too long and put on more sunscreen after 30 min