Sum of an Arithmetic Series?

for the 3 summer months 12(weeks). Job A pays 325$ oper month with a monthly raise of 100$. Job B pays 50$ per week with a weekly raise of 10$ which is the better-paying job?

Sum of an Arithmetic Series?home theater

Job A:

$325 + $425 + $525 = $1275

Job B:

$50 + $60 + .... ($50 + 11*$10)

= $50 + $60 + .... $160

= 12/2 * ($50 + $160)

= 6 * $210

= $1260

Job A is better paying

Sum of an Arithmetic Series?comedy club opera theater

Job A is better. It pays a total of $1275, and Job B pays a total of $1260