The half-life of a radioactive sample is 4 hours. If 60 g of the sample was initially present, how much will remain after 7 hours? a) Give the equation that represents this function. b) Find the final amount. c) Create a graph using Desmos at supports your answer for b. Share this graph with me. The half life of a radioactive sample is 6.2 hours. If 20000 g of he sample is present after 7 hours, how much initially present? a) Give the equation that represents this function. b) Find the final amount. Create a graph using Desmos at supports your answer for b. Share this graph with me. 5. Solve. 2 = 4* 6. Solve. 330 = 27" 7. Solve 4 = 645+ 8. Solve 52+1 = 9. Solve. 63x-7 36*-1 10. Solve. 730+2) 49-1 = 1253 11. Solve. 50-3) = 2161 20-2) Page 2 12. Solve. = +4 13. Solve. 6(2x+1) = 274(x-2) 14. Solve k = 25. Round your answer to one decimal place. 15. Solve 5x2145. Round your answer to one decimal place. Page 3