Answer:
Step-by-step explanation:
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because the bases are all the same.. just add the exponents

or

There is about a 16.5% chance to pull an 8-inch piece, this is theoretical probability though. <span />
Answer:
A=a+b
2h=20+8
2·20.4≈285.6
Step-by-step explanation:
Answer:
D
6 classes
Step-by-step explanation:
did it on khan :)