Answer:
16
Step-by-step explanation:
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Your answer is 12x^5 - 18tx^3 and for future reference instead of having to write out exponent you can just put this symbol first ^. Hope this helps!
Answer:
15:24 will be your anwser
3:30 because 105/60 equals 2.15
then you just add the time to the starting time
You know they are parallel because the lines will never intersect or meet. (Two straight lines usually mean it is parallel)