What is the total duration in minutes for the recorded lap times?

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

One of the solutions to x2 - 2x – 15 = 0 is x = -3. what is the other solution? ox=-5 ox= -1 0 x=1 x = 5

Aresearch study is done to find the average age of all u. s. factory workers. the researchers asked every factory worker in ohio what their birth year is. this research is an example of a census survey convenience sample simple random sample