Darwin bought 17 new baseball cards for his collection each card cost 3.77 including tax how much money did he pay

Jamie went to home depot.she bought 25 bags of soil that cost $9 per bag.she bought 15 pots at $8 each,and she bought 23 bags of pebbles at $15 each.she used a coupon that gave her $5 off for every 100 dollars she spent.how much did jame pay at the end?

Given a: b and b: c, find a: b: c. write the ratio in simplest form. a: b=6: 10 and b: c=21: 33

If x varies directly as y, and x = 7.5 when y = 10, find x when y = 4