A computer store buys a computer system at a cost of $457.80.The selling price was set at $763, but after a year the computer did not sell .The store then advertises a 40% markdown on the $763 computer system. Find the sale price

since both sides equal, there are infinitely many olutions.

y=mx+b is the final answer!   : )

(-1,-0.5)

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