Write an exponential function in the form y=ab^x that goes through points (0, 20) and (2, 180)

How to use order of operation in 20 divide by 4 multiply 5 = 1

The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?

Bobs burgers bam has a special deal of 4 hamburgers for $6. at that rate, how much should it cost to buy 3 hamburgers?