The sum of the digits of a two-digit number is 13. if the digits are reversed, the new number is 9 more than the original number. find the original number

Three coins are flipped. what is the probability that there will be at least two tails?

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.

Which is an x-intercept of the graphed function? (0, 4) (–1, 0) (4, 0) (0, –1)