The Answer Is B
Use proportions to find x% of the children playing on the swings.


Meaning B is correct.
,Answer:
I got -30
Step-by-step explanation:
Becuase when I did 5 x 2= 10
and 10 -40 = -30
Answer:
C) base side length = 30.6 cm, height = 27.3 cm
Step-by-step explanation:
What is being asked here? Are they asking for the passing grade or the total with all the other 90 points added? I think it is A, 90%
Answer:
50
Step-by-step explanation:

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We make use of the special form for the difference of squares:
(a+b)(a-b) = a²-b²