At a high school, students can choose between three art electives, four history electives, and five computer electives. each student can choose two electives. to the nearest hundred-thousandth, what is the approximate probability that a student chooses a computer elective and an art elective?

If i have 20$ and i gave 5$ away how much i got

What is the result of adding the system of equations? 2x+y=4 3x-y=6

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.