Saba's dance class is 3 miles from her home. Her music class is 12 miles from her home. Write an equation that shows the number of times farther Saba's music
class is from her home than her dance class is from her home.

What is the solution to the equation in the & show work i’m very

2.5 milligrams is equivalent to how many grams

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.