Frank has devised a formula for his catering business that calculates the number of meatballs he needs to prepare. the formula is m=ra+2c, where c= number of children; m = meatballs; a = number of adults. how many meatballs are required for a party of 25 adults and 5 children?

25.2

step-by-step explanation:

2+4x6-8/10= 25.2

, 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