Can i get answers this is very urgent!

7.) 2,   8.) 2,   9.) 7,   10.) 9,   11.) 5,   12.) 4,   13.) 15,   14.) 6,   15.) 6,   16.) 3   17.) 3   18.) 18

Hope it helps a little, don't know how to do the 1-6 sorry.

55? i think maybe

step-by-step explanation:

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.