Anetwork charges $855,000 for a 30-second ad during a major televised sports event. the advertisers must purchase a minimum of three ads during the broadcast. if an advertiser buys the smallest number of ads possible, what is the advertiser's total cost?

, 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

i think its a and d

step-by-step explanation:

answer: 1475

step-by-step explanation:

becuase you have to know what they are asking you