Can you explain 3 and 4 and tell met he right answers if I'm wrong?

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

Find the actual dimensions of the box. the side length are in meters and integers. the surface area of the box is 104 m2 and volume of the box is 60 m3.

The graph of a function f(x)=(x+2)(x-4). which describes all of the values for which the graph is negative and increasing? all real values of x where x< -2 all real values of x where -2