1. write an algebraic expression to represent "the sum of 5 times a number and 17"

a. 5 x + 17
b. 5 x - 17
c.5 (x + 17)
d.5 + 17 x

2. write an equation to represent the statement: "the product of a number and five plus two is equal to 100."

a. 5 - x - 2 = 100
b. 5 (x - 2) = 100
c. 5 x + 2 = 100
d. 5 - 2 x = 100

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.