Situation:
Find the substance's half-life, in days.
Round your answer to the nearest tenth.
A 46 gram sample of a substance that's a
by-product of fireworks has a k-value of
0.1374.
Enter the correct answer.
IN= Noe
-kt
DONE
No = initial mass (at time t = 0)
OO
N = mass at time t
k = a positive constant that depends on
the substance itself and on the units
used to measure time
t = time, in days

Phyllis and chen are saving money to go to a football game. each friend starts with some money and saves a specific amount each week. phyllis made a graph to show the total she has saved at the end of each week. chen wrote an equation to show the total, y, he has saved at the end of each week, x. y = 15x + 15 compare the amount that each friend has when both friends start saving. select the correct answer from the drop-down menu to complete the statement. phyllis starts with $ and chen starts with $

Match each function with its rate of growth or decay

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?