One way in which you could do this problem quickly and accurately would be to mult. both sides by a^3, to elim. the fraction:
a^n = a^9 * a^3 = a^(9+3) = a^12. Thus, n = 12.
30 dollars
If she received 30 dollars in change then she paid with a 100 dollar bill
3/4+1/3= 13/12 = 1 1/12 />9/12+ 4/12
3 lbs are 2 12/12
2 12/12 -1 11/12= 1 1/12. One and one twelve
Answer:
magnitude=4.47214
radicle form=20
please mark as brainliest:)
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