Posted by Anonymous on Tuesday, December 4, 2012 at 7:49pm.
Mrs. Black has one begonia plant. If she buys two begonia plants each year for every one she has, how many will she have in four years?
Please explain the answer.

math VERY URGENT  Steve, Tuesday, December 4, 2012 at 7:53pm
every year she has 3 times as many plants
1+3+9+27+81 = 121

math VERY URGENT  bobpursley, Tuesday, December 4, 2012 at 7:56pm
first year 1
second year 2+1
third year 6 +2+1
fourth year=18+6+2+1
total= sum above

math VERY URGENT  Aasiyah, Wednesday, November 18, 2015 at 11:16am
24 plants
first year 1+2=3
second year 3x2=6
third year 6x2=12
fourth year 12x2=24

math VERY URGENT  Logan, Thursday, December 10, 2015 at 8:25pm
First year
1+ 2=3
Second year
3+2+2+2=9
Third year 9+2+2+2+2+2+2+2+2+2=27
Fourth year
27+[27•2]=81
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