Cobalt 60 has an annual decay rate of about 13% how many grams of a 300 g sample will remain after 20 years round to the nearest two decimal places.( quick for a quiz): )

It loses 13% of its mass and is reduced to 100% -13% = 87% every year.

(300 g) * (0.87)^20 = 18.51 grams

on a coordinate grid, point a is at (−4.0, −2.4) and point b is at (4.0, −2.4). point b is a reflection of point a across the –axis. input either a lowercase x or i think is the right awnser

step-by-step explanation: