#1.) The girl would have $37 left. [EXPLANATION YOU MOST LIKELY NOT USE OR CARE ABOUT]: Zaria spent 18 bucks after 2 days on vacation. According to what I know from that, she spent about 9 dollars each day. So, if you add 5 more days to that, along with the fact that she’s spending 9 dollars a day, 9x5 equals 45. In 5 days she spent 45 bucks, add the 45 bucks with 18 bucks, you’ll get 63. $63 dollars spent after 7 days of vacation. Now they said, how much she’ll have LEFT, soooo, 100-63= 37 DOLLARS. BOOM... your welcome