The holiday rush gets really intense. you work from 7am to 11pm on the friday and saturday just before xmas, selling clothes and then stocking shelves, and then from 9am to 9pm on sunday. your pay rate is $20 per hour. how much do you get in gross wages for that one weekend

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.