For model 5, the tip of the blade travels 0.18 mile per revolution. what is the approximate speed, in revolutions per minute, for model 5?

Ill mark the brainliest if you me with the these three questions 7,8,9

Pleas ! i just cant seem to get it right! choose: congruent or proportional choose: cf or ce or bc choose: segment addition postulate or cpctc

Summary statistics given for independent simple random samples from two populations. use the pooled t-interval procedure to obtain specified confidence interval. x1=71.6, s1=3.9, n1=11, x2=67.9, s2=3.4, n2=9 determine a 99% confidence level.