Marko is putting tiles on the roof of his house. After working for 2 1/3 hours, he has completed 3/5 of the roof. Can Marko put tiles on the entire roof in 5 hours if he continues at the same rate?How long will it take him to finish the roof.

Aquantity with an initial value of 3900 decays exponentially at a rate of 35% every hour. what is the value of the quantity after 0.5 days, to the nearest hundredth?

An investment decreases in value by 30% in the first year and decreases by 40% in the second year. what is the percent decrease in percentage in the investment after two years

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.