New York and Denver are in different time zones. When it is noon in New York, it is 10:00 a. m. in Denver. At 2:00 p. m. in New York, a train departs, and it arrives in Denver 45 hours later. What time is it in Denver when the train arrives?

Suppose a laboratory has a 30 g sample of polonium-210. the half-life of polonium-210 is about 138 days how many half-lives of polonium-210 occur in 1104 days? how much polonium is in the sample 1104 days later? 9; 0.06 g 8; 0.12 g 8; 2,070 g