Last weekend you attended a concert. You spent a total of $156. Twenty percent of the cost was for a parking pass. The rest of the money was used on four tickets. How much was each ticket?

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 statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.

Can you divide 25 into 4 equal groups? explain why or why not.