You are thinking of visiting Nepenthe next, but you need to make sure you can tolerate its gravity. Your guidebook is old - it belonged to your great uncle - so it is a bit iffy on the planet's details. Nepenthe's mass is between 1.6 and 2.2 times Earth's mass, and its radius is between 1.3 and 1.7 times Earth's radius. What is the minimum surface gravity of this planet? What is the maximum surface gravity of this planet? If a traveler weighs 100 pounds on Earth, how much might they weigh on Nepenthe? (Calculate both minimum and maximum weights.)