Sarah and brooke use an online tool to time how long it takes to download apps. sarah records a download time of 3.625 seconds for her app. brooke records a download time of 3.635 seconds for her app. label the number line below with hundredths. then mark and label two points to show sarah's and brooke's download times

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.

Will give brainliest b. describe the function over each part of its domain. state whether it is constant, increasing, or decreasing, and state the slope over each part.

The product of 3 and a number increased by 8 is 31