The winter group provides tax advice

Katlyn made 4 dresses with 7 yards of fabric. how many yards did she use on 1 dress?

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.