Ariana starts with 100 milligrams of radioactive substance. The amount of the substance decreases by 20% each well for a number of weeks, w . The expression 100(1-0.2) finds the amount of radioactive substance remaining after w weeks. Which statement about this expression is true

The volume of the sun is approximately 1 × 10^18 cu km, while the volume of jupiter is approximately 1 × 10^15 cu km. which of the following is true? a. the volume of jupiter is approximately one thousand times the volume of the sun. b. the volume of jupiter is approximately one hundred times the volume of the sun. c. the volume of the sun is approximately one thousand times the volume of jupiter. d. the volume of the sun is approximately one hundred times the volume of jupiter.

What is the value of x? enter your answer in the box.

Find the distance of the blue line between the two labeled points. round to the nearest hundredth. a) 7.07 b) 7.21 c) 10 d) 5.12