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.

While shopping for music online , Isabel bought 4 country albums and 5 pop albums . Each album came with a lyric sheet and had 8 songs . How many songs did Isabel buy total ?
72

Kyle jogged 1.125 laps in P.E . class and 2.125 laps during track practice . How many laps did Kyle jog in all ?
3.25

Paul made 68 dollars mowing lawns and 13 dollars weed eating . If he only spent 9 dollar a week , how long would the money last him ?

9