how do you determine the fraction of parent isotope remaining after 20,000 years if the isotope used has a half life of 5000 years

Aline that intersects one of two parallel lines intersects the other also always sometimes never

Meghan has created a diagram of her city with her house, school, store, and gym identified. a. how far is it from the gym to the store? b. meghan also wants to walk to get some exercise, rather than going to the gym. she decides to walk along arc ab. how far will she walk? round to 3 decimal places.

Graph the equationy= x+3[tex]y = x + 3[/tex]