while working on his science fair project, julian noticed changes in the cultures he was growing. he noticed that the cultures were increasing daily as displayed in the chart.
1-4
2-9
3-16
4-25
if the increase continues at the same rate, how many cultures will be present on the 9th day?
1 day = 4 2 day = 9-4=added 5 3 day = 16-9 = added 7 4 day = 25-16= added 9 5 day = 25+11 = 36 6 day = 36 +13 =49 7 day = 49+15 = (keeping adding by 2 more each time) 8 day = 9 day =
