What is the perimeter and area of the shape made with these tiles

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

Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]

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.