Does anybody know some math programs? I want to get better at math since I have the time.

You can use PHO.TOMATH

This ap.p has got a calcu.lator and also video lect.ures

he sells x mount because thats eqivilqant to the maz and then divided into quarters

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