The model represents an inequality. What is the solution set for this inequality? 4x+12≤-8

Ineed with number 17 i don’t get it at alll

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?

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.