Cal withdrew $800 from his HSA to pay for non-medical expenses. He had to pay 25% income tax plus a 10% penalty on the withdrawal. After paying the tax and penalty, how much was left of the $800?

, 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

10 b/c 5*2 =10

step-by-step explanation:

srry ask agian

step-by-step explanation:

the answer is "add 2y and y"

step-by-step explanation:

you need to collect the like terms first.