An MP3 player that’s normally sells for 10%off. what is the sale price of the MP3 player? Find the sale price to the nearest cent

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

Which of the following best describes the delian problem?

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.