Pete says that to write 4/6 as 2/3 you combine pieces but to write 4/6 as 8/12 you break apart pieces. does this make sense, explain?

Yes, because if you simplify something (4/6 to 2/3) it makes the pieces bigger since you have a total of fewer pieces. the opposite happens when you make the denominator bigger; you have more pieces in bigger quantities.i really hope this

60 ÷ -20 x makes x = -3

Answer might be d.i think