The price of Stock A at 9 A. M was 15.75. Since the then the price has been increasing by the rate of $0.05 per hour. At noon the price of stock b was $16.53. It begins to decrease at the rate of$0.13 per hour. If the stocks continue to increase and decrease at the same rates in how many hours will the prices of the stocks be the same?

Which facts are true for the graph of the function below? check all that apply. f(x) = log8 x

Precalculus question, image attached.

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.