What is the percentage of $6 dollar tip on a $60 dollar bill?

Atotal of 766 tickets were sold for the school play. they were either adult tickets or student tickets. there were 66 more student tickets sold than adult tickets. how many adult tickets were sold?

Which statement accurately explains whether a reflection over the y axis and a 270° counterclockwise rotation would map figure acb onto itself?

Idon't get undoing if its pass adding and subtracting so can someone ? x-2 over 5 = 18