Math
posted by Betsy .
1)A bakery can sell muffins for $1 each. If it costs the bakery $5 to make 20 muffins, what percent of the money made from muffins sales is profit?
2) A community is considering increasing the sales tax rate 0.5% to fund a new sports arena. If the tax rate is raised, how much more will you pay in sales tax on $500.

1.
5/20 = $0.25 each
1.00  0.25 = $0.75 profit
75% is profit
2.
0.005 * 500 = $2.50