Agroup of tourists went downstream a river and are supposed to return in 3 hours. how far can the tourists travel down the river if the speed of the current is 2 mph, and the speed of the boat in still water is 18 mph?

answer is more than one

step-by-step explanation:

is there any photos or whatever?

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1