Asample of five words was randomly selected from a 200-page book. the average number of letters of the five words was calculated. the process was repeated 10 times. the average word length of each of the 10 samples is given in the table.

Find the quotient. 50a2 – 98b2 -5a +7b

Find the values of the variables in the kite

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.