Going down the river a boat went 12 km/h. going up the river it only went 2 km/h. what is the speed of the current? how fast would the boat go if there were no current?

try 10 km/h as the base speed

Step-by-step explanation:

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb