140 you divide 490 by 3.5.
Answer:
by substituting the values we get
51÷(15+2)
51÷17=3
hope it helps you mate
please mark me as brainliast
I believe that the answer is 100,000
I belive the answer to be b
Answer:
1. 
2. not completely sure but i think its 
3.x
=
2
i
√
5
,
−
2
i
√
5
4.x
=
−
9
±
√
73
/2
5. Im not sure...
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