Twelve and sixty-eighty thousandths

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?

Which statement best explains why ben uses the width hi to create the arc at j from point k

Me. i can't figure out this question. give an explanation too. .