a plot of land is in the shape of a right angle triangle whose base in perpendicular are 65 metres in 72 meter respectively if its boundary is made by using 4 round iron wire find the total cost of the wire at the rate of rs12 per meter?? please help me my exam is tomorrow pleaseif you will do this then I will make you in brainlist please​

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.