A normal distribution has a mean equal to 44. What is the standard deviation of this normal distribution if 2.5% of the proportion under the curve lies to the right of x = 59.68?
(Round your answer to two decimal places.)

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.

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2

The water aquarium shark tank is always greater than 25 feet of the water level decreased by 6 feet during cleaning what was the water level before the cleaners took out any water