Ronda rollins gets a social security benefit of $350 per month. her husband receives a benefit equal to 200 percent of ronda's benefit. if they take an additional $400 per month from savings, what will their monthly income be?

Their monthly income be $ 1450.

Step-by-step explanation:

Given,

The security benefit of Ronda for a month = $ 350,

Also, her husband receives a benefit equal to 200 percent of Ronda's benefit,

So, the husband's benefit = 350 + 200% of 350

= 350 + 2 × 350

= 350 + 700

= $ 1050  

Total benefits for a month = $ 1050,

Now, they take additional $ 400 per month,

So, their monthly income = monthly benefits + additional taken amount

= $ 1050 + $ 400

= $ 1450.

a and c

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