Sam wants to show his brother how water changes state and changes from a liquid to a gas. what is the best way for sam to show this change? a) add ice to a bowl of water. b) heat a pot of water on the stove. c) put a bowl of water in the freezer. d) place a covered bowl of water on the table.

Simba travel agency arranges trips for climbing mount kilimanjaro. for each trip, they charge an initial fee of \$100$100 in addition to a constant fee for each vertical meter climbed. for instance, the price for climbing to the shira volcanic cone, which is 30003000 meters above the base of the mountain, is \$400$400. let f(d)f(d) denote the fee of a trip ff (measured in dollars) as a function of the vertical distance climbed dd (measured in meters). write the function's formula. f(d)=