Cobalt-60 has a half-life of about 5 years. how many grams of a 300 g sample will remain after 20 years? a: 0.0625 g
b: 9.375 g
c: 18.75 g
d: 37.5 g

This is about circle theorems. someone asap : (

Circle d circumscribes abc and abe. which statements about the triangles are true? statement i: the perpendicular bisectors of abc intersect at the same point as those of abe. statement ii: the distance from c to d is the same as the distance from d to e. statement iii: bisects cde. statement iv: the angle bisectors of abc intersect at the same point as those of abe. a. i only b. i and ii c. ii and iv d. i and iii e. iii and iv

How do i put 3(x+7) in distributive property