The amount of radioactive material in a sample halves every 10 hours. By what percent does the
population change each hour?
OA) 6.7% growth
O B) 93.9% decay
O C) 6.7% decay
OD) 107.2% decay

Giving 100 points asap bev has to cut her grandma's grass this weekend and wants to know exactly how much area she will be cutting. calculate the area of the polygon. be sure to show all your work and explain your answer.

Rectangle pqrs has length a and width 4b. the x-axis bisects ps and qr what are the coordinates of the vertices

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees