Acountry's population in 1995 was 164 million. in 2001 it was 169 million. estimate the population in 2015 using the sxponential growth formula. round your answer to the nearest million

x= 149. 24+7=31. 180-31=149

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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