Find the half-life of a radioactive material if after 1 year 99.67% of the initial amount remains. (round your answer to one decimal place.)

like poles repel so keep pushing north to north and repels funny to see this

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles

365.25 earth days are in the year of a light year