Select all the functions that represent exponential decay. A
y=2(0.7)xy=2(0.7)^{x}y=2(0.7)
x

B
y=0.7(2)xy=0.7(2)^{x}y=0.7(2)
x

C
y=0.9(3)xy=0.9(3)^{x}y=0.9(3)
x

D
y=3(0.9)xy=3(0.9)^{x}y=3(0.9)
x
PLEAS

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

Acourt reporter is transcribing an accident report from germany. the report states that the driver was traveling 80 kilometers per hour. how many miles per hour was the driver traveling?

Given the sequence 7, 14, 28, 56, which expression shown would give the tenth term? a. 7^10 b. 7·2^10 c. 7·2^9