Which pair of ratios can form a true proportion 1. 1/2, 6/10 2. 6/8,5/20 3. 3/5,6/10 4. 3/9,7/80

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

Evaluate this using ! 0.25^2 x 2.4 + 0.25 x 2.4^2 − 0.25 x 2.4 x 0.65

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.