Can somebody help me with this please? Will give brainlest :) (valid answers only or you’ll be reported)

12 7 2 -3

Here

1st term = 12

second term = 7

common difference (d)= 7-12 = -5

5th term = 4th term + d = -3 -5 = -8

6th term = 5th term + d = -8-5 = -13

Step-by-step explanation:

$450.00 for 6 weeks

or

$300

step-by-step explanation:

$200.00 for first week $50.00 x5 equals $250 plus $200 equals $450.00 for six weeks.

$200 for first week

$200 x 0.10 = $20

$20 x 5 = $100

$200 + $100 = $300