For several years, graham has gathered data on students who own a computer and on their performance on a typing-speed test. he creates the linear model y = 3.8x + 17.4 where y represents the typing speed, in words per minute, of a student and x represents the number of years the student has owned a computer. according to graham’s model, what is the approximate speed of a student who has owned a computer for three years?
a. 21 words/min
b. 29 words/min
c. 56 words/min
d. 64 words/min

If u give wrong answer ill report u : )

Match each function with its rate of growth or decay

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.