1. During a field trip, 60 students are put into equal sized groups. A) **Describe two ways to interpret 60 ÷5 in this context.

B) **Find the quotient.

C) Explain what the quotient would mean in each of the two interpretations you described.

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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.