The graph of a proportional relationship contains the point (8, 4). what is the corresponding equation? enter your answer as a fraction in simplest form in the box. y = x

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry