Are these fractions equivalent or nonequivalent? xy/4y x/4

One of the inventors of integrated circuits observed that the number of transistors that fit on an integrated circuit will double every 24 months. what type of relationship most appropriately models this situation?

Hiroaki wants to find 3 3/4 - 7/8 explain why he must rename 3 3/4 to do the subtraction.

Atemperature of 1.64◦f corresponds to answer in units of ◦c.