Mario reduced a picture that is 10 inches long by 8 inches wide using a photocopier. the reduced picture is now 6 inches long. by what scale factor did the photocopier reduce the picture?

a) 3/5
b) 3/4
c) 4/3
d) 5/3

Given that de, df, and ef are midsegments of △abc, and de=3.2 feet, ef=4 feet, and df=2.4 feet, the perimeter of △abc is .

1.two more than the quotient of a number and 6 is equal to 7 use the c for the unknown number translate the sentence into an equation

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.