153,732,991 what is the value of yhe underlined digit if it is the 1

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

Given the diagram below, michael writes, "segment ac is congruent to segment ac." which of the following reasons allow him to write this statement?

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