I am done wit this app

What is not true about kl and mn? what is mn? (show your work)

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

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.