<span>Lennie used
associative law of addition.
Associative law of addition doesn’t matter how you group the given numbers to
add.
a + (b + c) = (a + b) + c
=> 19 + (11 + 37) or ( 19 + 11) + 37
=> 19 + (48) or (30) + 37
=> 67 or 67</span>
Step-by-step explanation:
I hope you understand it. Thank you for 50 points
Answer:
30mm
Step-by-step explanation:
The question "How much did the plant grow per day?" is asking for the rate of the corn growth for one day, in the format height/day.
The rate given is over 6 days rather than 1 day:
180 mm in 6 days
The find the rate for one day, divide the height by the days.
180mm/6days = 30mm/1day
Therefore the plant grew 30mm per day.
