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➷ Multiply the expressions so they have a denominator of 10
Once you have done this, you can add them
The answer would be option B
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Recall your d = rt, or distance = rate * time
notice, the time he took to cover 63 miles with the wind, is the same amount of time he took against it with 51 miles only, let's say, he took "t" hours long
and he was cycling at a rate of "r"
thus

solve for "r"
Answer:
C.) Luster
Step-by-step explanation:
Luster describes the reflection of light off a mineral's surface. Mineralogists have special terms to describe luster. One simple way to classify luster is based on whether the mineral is metallic or non-metallic. Minerals that are opaque and shiny, such as pyrite, have a metallic luster
Answer:
Pretty sure its 5.
Step-by-step explanation:
AB should represent the space between A and B so i think it would be 5.