In order to join an online learning community, there is a 20$ start up fee and a $5 monthly fee. Write an equation in slope intercept that models this situation

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.

Astraight water slide is 175 feet above ground and is 200 feet long. what is the angle of depression to the bottom of the slide?

What is mean median mode and range?