<span>21 Bo; 19 Erica,Vote me brainliest
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Answer:
Step-by-step explanation:
-2(2)-1+1(1)-1(-1)
Do multiplication
-4-1+1+1
Now add/subtract
-5+2
-3
Answer:
7/10
Step-by-step explanation:
7 at the top, 10 at the bottom
D.) Nanometer is the smallest among your options.
It is equal to 10^-9
Hope this helps!
