Which relationships have the same constant of proportionality between y and x as t equation y=5/2x

Bobby bought 1.12 pounds of turkey at a cost of 2.50 per pound. carla bought 1.4 pounds of turkey at a cost of 2.20 per pound. who spent more and by much?

Tamar is measuring the sides and angles of tuv to determine whether it is congruent to the triangle below. which pair of measurements would eliminate the possibility that the triangles are congruent

The formula for the volume of a right square pyramid is given below, where a is the side length of the base and h is the height.