Caffeine in the blood stream has a half life of 5 hours. A venti
sized coffee from Starbucks has 415 mg of caffeine. How much
caffeine would be left (to the nearest whole number) behind in
your body 22 hours after drinking a venti coffee?

20 mg

Step-by-step explanation:

The amount remaining is:

A = P (½)^(t / T)

where P is the original amount,

t is time,

and T is the half life.

A = 415 (½)^(22/5)

A ≈ 20

trapezoid

step-by-step explanation:

first i plotted all my points on a grid graph

i made sure all of them were in the correct quadrant

then i saw it was a trapezoid or a quadrilateral

investment b is an ordinary annuity with $3,909.64 in the account after one year.

step-by-step explanation: