Whats the answer to this factoring question: x³-4x²-5x=0

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

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.