Tell whether or not each sequence is an arithmetic sequence. 15,13,11,9,...

4,7,10,14,...

They’re both arithmetic because the pattern for the first one is add 2, and second is add 3. As long as you can see a pattern of addition or subtraction for the whole thing then it is arithmetic.

Step-by-step explanation:

15, 13, 11, 9, Here, the common difference is 2 and same in all the cases:13 - 15 = -211 - 13 = -29 - 11 = -2

So, this is an AP.

4, 7, 10, 14, Here, the common difference is not same in all the cases:7- 4 = 310 - 7 = 314 - 10 = 4

So, this is not an AP.

Hope it helps :)

Do the math. she originally had 50 dollars on her gift card and she had 12 dollars left on her gift card after she finished her shopping spree. if you subtract 50 minus 12 you get thirty eight dollars as your answer. so therefore, ciara spent 38 dollars total o