Which one is the odd one out? Pls tell me why

The table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9

V=x^4-y^4 pick three expressions that can represent the three dimensions of the prism (each in meters)

Amotorboat maintained a constant speed of 12 miles per hour relative to the water in going 45 miles upstream and then returning. the total time for the trip was 8.0 hours. use this information to find the speed of the current.