Maci put 200 inches of ribbon along the border of a rectangular bulletin board if the length of the bulletin board is four times the width then what are the dimensions

On average, how many more hits will he get when he bats 100 times at home during the day as opposed to 100 times away at night?

2x minus y equals 6, x plus y equals negative 3

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.