Why was the movable type of the printing press such a breakthrough for publishing?

So im doing this school challenge and the teachers said whats the average text a student gets a day so i need to get about 20 in a day but dont know how can you guys 2163371293

List a few alternative options and input and output over the standerd keyboard and monitor. explain their functioning in details.

An environmental protection agency study of 12 automobiles revealed a correlation of 0.47 between engine size and emissions. at 0.01 significance level, can we conclude that there is a positive association between the variables? what is the p value? interpret.