If your expenses are greater than your income you need to a. re-do your budget. c. save more money. b. reduce your spending. d. all of the above.

d. all of the above

Step-by-step explanation:

When your expenses are higher than your income, this creates a lot of problems like - if this thing happens without any check, then soon your savings are gone and you are in debt.

In such situation, you will have to earn and save more money and you will need to cut back your expenses and scrutinize and re do your budget.

So, basically its all the options given here.

, 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