Samuel bought a used car with an odometer reading of 007534.8 miles. He drove the car for 6 years and then decided to sell the car. The odometer reading at this time is 134572.9. a. How many miles did Samuel drive during the time he owned the car?

b. What was the average number of miles Samuel drove each year?

(w – 2.5)(w + 2.5)

(–4v – 9)(–4v + 9)

step-by-step explanation:

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

21

jk it's 20

step-by-step explanation:

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