Tony works has a salesclerk in a department store. he earns a base salary of $215 per week plus 15% commission on his weekly total sales. tony total sales for last week was $ 14,250.00. what was tony's gross salary?

Tony's gross salary for the week is $2352.2

Step-by-step explanation:

Tony works has a salesclerk in a department store. He earns a base salary of $215 per week plus 15% commission on his weekly total sales. The total sales for last week was $ 14,250.00. It means that his commission would

15/100 × 14250 = 0.15 × 14250 = 2137.5

Therefore, Tony's gross salary for the week would be

215 + 2137.5 = $2352.2

, 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