Round answer to 2 decimal places:

Find the missing value for the radioactive isotope. (Round your answer to two decimal places.) Hall'hllfe Initial Amount Arbor Find the missing value for the radioactive isotope. (Round your answer to two decimal places.) Half-life Initial AmOunt After Isotope (years) Quantity 1000 Years Use the Richter scale I R = log 1r0 for measuring the magnitudes of earthquakes. Find the magnitude R of each earthquake of intensity I (let 10 = 1). (Round your answers to two decimal places.) (a) I = 155,400,000 (0) I = 41,080,000 (c) l' = 14,000