The formula for half-life is:

Where A is the amount of iodine-131 initially and after 40 days, t is time, h is half-life of the isotope. Let's plug in our values to the equation:

Therefore, the patient has 0.625 grams of iodine-131 after 40 days.
i assume it will be 5mins i hope thi shelp u out
Answer: Answer is D
I took the test little while back.
There’s many types of electricity that comes from an outlet, like [15A, 120 Volt Outlets] those are more common in older homes and can come in two versions [Two-pronged outlet and three-pronged version]
The law of floatation states that, a floating body displaces its own weight of the fluid in which it floats.