PLEASE HELP Carbon-14 is a radioactive substance that decays over time. This expression models the
percentage of carbon-14 that remains in a sample after t years:
100()***
What does the number 5,730 represent?
the number of years it takes for the carbon-14 to decay completely
the original amount of carbon-14 in the sample
the number of years it takes for half of the carbon-14 to decay
the amount of carbon-14 in the sample after 100 years

i believe that the answer is

b. y-1=-2(x-4)

hope this !

a is 8.b is 10.c is 10.5. d is -.5

step-by-step explanation:

just minus the smallest number from the biggest.

replication and blocking

step-by-step explanation:

a reflection across line m

step-by-step explanation:

the first transformation is a 90 degree rotation counterclockwise around the point g. this gets to image gh'j'k'. when the image gh'j'k' is reflected over the line  m the result is g'h"j"k". the final transformation is a reflection over the line  m.