Answer:
for every week, the plant grows by 1.8 so the answer would be
Explanation:
5= 10.9
6= 12.7
7= 14.5
8= 16.3
9= 18.1
10= 19.1
11= 21.7
12= 23.5
After 12 weeks it would be 23.5 inches because you are adding 1.8 after each week
21 inches
f(x)=1.5x+3
f(12)=21
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