JIll

A Chinook Salmon has a maximum underwater speed of 3.58 m/s, but it can jump out of water with a speed of 6.68 m/s. to move upstream past a waterfall, the salmon does not need to jump to the top of the fall, but only to a point in the fall where the water...

x-1=4 2/3

first you subtract 16 from the number of all students , then divide that number by two and you will get your answer .