What are the lines in the photo called and why

1 3 5

step-by-step explanation:

i took the test: )

f(x) = y

f(-3) = -5

step-by-step explanation:

ending amount = beginning amount / (2^n)

where "n" = number of half-lives (or elapsed time / half-life)

ending amount = 50 mg / (2 ^10 / 5.3)

ending amount = 50 mg / (2 ^ 1.8867924528)

ending amount = 50 m / 3.6981210597

ending amount = 13.5203794557 mg

or about 13.5 mg remain

source:  

32500

step-by-step explanation:

3.25*10000