Answer: x + 30 = 10 and x + 30 = –10
Explanation: The two equations can be used to find the minimum and maximum depths Laurie wants to stay between is the below:
x + 30 = 10 and x + 30 = -10
Hope this helps!
Answer: He drank 15 cups all together :)
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Solar energy sources would have the least ecological imoact
None of the above! You can use the headlights even if the visibility is way under 1000feet. There are many countries especially in Europe where headlights/daylights must be always on with no regard to visibility conditions. In some cities you will be even given a fine for not having the lights on all the time. But rules vary from country to country...