B. when something is at rest it has balanced forces. And unbalanced when it's moving.<span />
So you want two groups that are in a ratio of 4 to 7
so 33=4x+7x
so 33=11x
so x=3
that means the groups are 4*3= 12 and 7*3=21

A. Area of given figure = 280 + 77 = 357 cm²
B. length of semicircle = 22 cm
Answer:
is the answer. See steps below.
Step-by-step explanation:


Repeat the steps and you will reach a point where no further division is possible.
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B is a times b
C is also a times b
sorry im stuck on the rest