Xyz=k express x in terms of y z and k

Click on the graphic until you find the right quotient. (36xa - 30xb) ÷ (-6x2)

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.

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.