Answer:
B or 31r-71
Step-by-step explanation:
First, use distributive property to expand the first term.
30r-66-(5-r)
Remove the parenthesis of the third term:
30r-66-5+r
Combine like terms
31r-71
Answer:
displacement = 75 km
Step-by-step explanation:
the distance from final to initial point gives the displacement
displacement = 120 - 45
Answer:
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