Mrs. Kruz has five counters that each have a red side and a yellow side. If she dumps all of the counters out of a bag, what is the probability that they all land yellow-side up.

Name the quadrilaterals that have four equal sides.

Which of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?

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.