Answer:
a. -2
Step-by-step explanation:
3¾ ≈ 4
-⅖≈ -½
4 × (-½) = -2
A reasonable estimate is -2.
Answer:
2,000 micrometers
Step-by-step explanation:
Well 10 cm in 50 or so weeks is 0.2 cm per week so you could use mm
Then the measuremet would be about 2 mm per week.
If the measurement is extremely accurate you could consider using micrometres.
There are 1000 micrmetres in 1mm so in 1 week 2,000 micrometres
Hope this helps! <3 Jacoby
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