Pls I need clear workings. (A.)evaluate without tables

1.)3log2+log20-log1.6

2.)log√2/log9

3.)log0.2/log25

4.)if logx-log(2x-1)=1,find x?​

Astudent received the following grades last semester. find the student's semester grade point average. an a is algebra (3 credits), a b in history ( 3 credits), a in sociology ( 3 credits) a d in english ( 3credits) and a c in seminar ( 2credits). an a is worth 4 points, a b is worth 3 points a c is worth 2 points and a d is worth 1 point.

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Which two fractions are equivalent to 24/84? 6/42 and 2/7 6/21 and 2/6 12/42 and 3/7 12/42 and 2/7