You are given a math word problem and you are supposed to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

[EX Q]: A waiter had 6 tables he was waiting on , with 3 women and 5 men at each table . How many customers total did the waiter have ?
[EX A]: 48

[EX Q]: Sam got 9 pennies for washing clothes , and 7 quarters for mowing lawns . How much money does Sam have ?
[EX A]: 1.84

[EX Q]: There are 7 dogwood trees currently in the park . Park workers will plant 3 more dogwood trees today and 2 more dogwood trees tomorrow . How many dogwood trees will the park have when the workers are finished ?
[EX A]:
12