Janice is traveling to Canada and will change $250 US dollars into Canadian dollars. At the current exchange rate, $1 US dollars is equal to $1.28 Canadian dollars. How many Canadian dollars will she get for her trip?

She will get $320 in Canada

Step-by-step explanation:

multiply $350*1.28 witch is the Canadian dollar currency

that gets you $320

, 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