Solve:
1. Two bunches of grapes have 53 grapes between them. The larger one has 29 grapes. How many grapes are in the smaller one?
2. Between 4:00 pm and 7:00 pm the outside temperature in downtown Boxerville dropped 18 degrees. If the temperature at 7:00 pm is 64 degrees, what was the temperature in degrees at 4:00 pm?