Julia's service charge at a beauty salon was $72.60, before tax. the sales tax rate was 8%. if she added 20% of the amount before tax as a tip, how much did she pay for the sevice at the salon?

Alake near the arctic circle is covered by a 222-meter-thick sheet of ice during the cold winter months. when spring arrives, the warm air gradually melts the ice, causing its thickness to decrease at a constant rate. after 333 weeks, the sheet is only 1.251.251, point, 25 meters thick. let s(t)s(t)s, left parenthesis, t, right parenthesis denote the ice sheet's thickness sss (measured in meters) as a function of time ttt (measured in weeks).

How many $20 bills do you need to have to make $280

Percent increase and decrease. original number: 45 new number: 18