HELP PLEASE IM TAKING FINALS
The lcd of the fractions below is 90 3/4 11/30 and 7/45

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

Does the point (1, sqrt 7) lie on circle shown.

What sums are equal to 6/12? choose all answers that are correct a.6/12+6/12+6/12+6/12+6/12+6/12 b.2/12+1/12+1/12+2/12 c.5/12+1/12 d.1/12+1/12+1/12+3/12 plz : )