29. Mary interviewed for a jobthat promised her a starting salaryof $32,000 witha$1,250
raise at the end of each year. What will her salary be during her sixth year if she accepts
her job?
る。
32,000
1,250
こと
a6
5
3200 +1250(6ー)
62'5 0
9450
3200
30. A water main broke and was shut off slowly to prevent further breaks. The first hour,
the water reached 3 km from the break. Each succeeding hour, the water traveled a
third of the previous hour's distance. What will be the radius of the farthest extent of
the water?
し3
3
31. The number of different electronic games in the arcade seems to have doubled each
month since the first one was introduced a year ago. If this description is accurate, how
many different games should be in the arcade today?
365
720