Answer: 30
Step-by-step explanation:
12+(x+2)=44
(x+2)=44-12
(x+2)=32
x=32-2
x=30
12 added to 30 and 2 is 44
Answer:
c
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b
1 ug = 0,001 mg
0,0002 ug= x
x= (0,0002×0,001)/1
x= 2e-7
