Write a system of equations to describe the situation below, solve using elimination, and fill in the blanks. Sharon is using ribbon to create girls' hair barrettes. For a craft fair in Lakewood, she made 14 small barrettes and 12 large barrettes, using a total of 154 meters of ribbon. Then, for another craft fair in Belleville, she made 13 small barrettes and 12 large barrettes, which used a total of 149 meters. How many yards of ribbon does Sharon use for each?

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.