What is equivlent to 12x+(−7)−214x−(−2)

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

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?

Which number produces a rationale number when multiplied by 1/5