What must you learn before you can calculate your target heart rate for exercise?

Can someone me. so last night i was with my girl and i ended up with a peanut butter jar in my anus. sadly we have tried to pull it out but its well stuck in there : ( any ideas how to get it out?

In which way does nicotine cause addiction? by stimulating the brain’s pleasure center by increasing blood-sugar levels by decreasing dopamine levels by reducing depression and anxiety

A12 pound cat is prescribed amoxicillin at 5mg/kg twice a day for seven days the oral medication has a concentration of 50mg/ml how many mls will the cat need per day