Shaun and trudy are selling raffle tickets. so far, shaun has sold x tickets. trudy has sold 3 more tickets than half the number of tickets that shaun sold. which expression represents the number of raffle tickets that shaun and trudy have sold altogether?

{3/2}x + 3

Step-by-step explanation:

Hope this helps

, 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

investment b is an ordinary annuity with $3,909.64 in the account after one year.

step-by-step explanation: