when multiplying scientific notation all you' do is move the decimal whatever times the exponent says or the little number on the 10. Move it to the right when its positive and when its negative move it to the left . I hope that helped :)
The answer is 2.
3/2a - ab + 1
3/2(5/6) - 5/6(3/10) + 1
5/4 - 1/4 + 1
4/4 + 1
1 + 1 = 2
That would be 391. Hope it helps!
It 20 and if + it withe x qnd you can so it is 20x
10y=x because if you multiply your y by 10, you would get the x
