You use inclined planes by putting an object on something and push it down like a ramp.
Answer:
C
Step-by-step explanation:
It's the only acute angle.
2.5 pounds or exact fraction 5/2 or 2 1/2 if you want a mixed fraction
Answer:
The answer is

Step-by-step explanation:
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Answer: 7/10
Step-by-step explanation:
2/5+3/10=4/10+3/10=7/10