Bismuth-214 has a half-life (50%) of approximately 20 minutes. Find the amount of Bismuth-214 left from a 40-gram sample after 2 hours.

Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field

Find the greatest common factor of the followig monomials 46g^2h and 34g^6h^6