How many mililiters are in 2.5 liters?

What is the inverse of the function f(x)=2x+1

Find the slope and the y-intercept if there's one and the equation of the line given these two points( 3, 2) and( 3, -4)

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.