Answer:
Step-by-step explanation:
It is already in standard form and can be expressed in scientific form as:

Answer:
15. 1/3 (33%)
16. 1/6 (16.66%)
17. 1/2 (50%)
18. 1/2 (50%)
19. 1/1 (100%)
20. 0/1 (0%)
Step-by-step explanation:
The answer is a because u replace x with zero to find the why value
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