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?

B) 29 words/min

Step-by-step explanation:

Equation : y = 3.8 (x) + 17.4

The 'X' value equals the three years (3 years)

New Equation: y = 3.8 (3) + 17.4

Step 1: 3.8 (3) = 11.4

Step 2: 11.4 + 17.4 = 28.8

Step 3: ROUND YOUR ANSWER TO THE NEAREST TEN So, 28.8 then becomes 29.

Step 4: Therefore, your answer is B) 29 words/min

understand that i don't know the answers

will someone answer his question

so, converting firstly the mixed fractions to improper fractions and then "adding".