Jonael dropped a sandbag from a hot air balloon at a target that is 250250250 meters below the balloon. At this moment, the sandbag is 757575 meters below the balloon.
Which of the following expressions represents the distance between the sandbag and the target?

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.

If f(x)=x+7 and g(x)=1/x what is (fog)(x)

What is mean median mode and range?