Based on the information give, the most probable answer to this question are these
The data have:
Mean = 24.6
Median = 24
SD = 4.41
IQR = 9.75
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90°
∠AEF is a right angle
∠CEF is a straight angle
m∠CEF = m∠CEA + m∠BEF
The number 1000 less than 921,438 is 920,438. What you do is take 921,438 and subtract 1000 from it.
SSS - the side they're sharing is also congruent so if you just add in the other congruent sides you get SSS
C) 22
86/4 = 21.5
*5 Or more, raise the score*
(rounds to 22)
you should have 2 lightbulbs left over but you would be 2 lightbulbs short if you were to get 21 packages as opposed to 22