WILL MARK BRAINLIEST Write an inequality to represent eeach situation. Use the letter "n" to represent "a number."
(Do not solve.)

Four more than a number is no more than thirteen.
Eleven less than a number is more than seventeen.
The sum of -8 and a number is at least 9.
16 is less than 8 times a number.
The product of a number and 5 is at the most 30.

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.