Ramon buys five 3 - pound bags of natural parrot food for $8.79 per bag and two 5 - pound bags for $13.90 per bag. what is the average cost per pound of parrot food?

, 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

i think it will be zero as slope has a formula of difference between initial and final distance divided by itz time interval