Stacy has 126 plants in total by adding 54, 45 and 27. Ypu divide the total number (126) by 42 and you will get 3. So Stacy will have 3 rows and 42 plants in each row.
Hope this helped.
What is the greatest number of rows that Stacy can have is she wants to use all of her plants? 3 rows
How many of each type of plant will she have in each row? 45 plants
Step-by-step explanation:
Introduction
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∠BDC=30, so ∠CBD + ∠BCD=180-30=150
ΔDBC is isosceles, so ∠CBD=∠BCD=half of 150=75
∠ABC=∠ABD-∠CBD=155-75=80
ΔABC is isosceles, so ∠ABC=∠ACB=80
∠BAC=180-80-80=20