Clasherforclashofcla Clasherforclashofcla
  • 09-05-2021
  • Mathematics
contestada

Find the sum of the arithmetic sequence.

3, 5, 7, 9, ..., 21
Choices:
39
120
20
23

Respuesta :

elishajones696 elishajones696
  • 09-05-2021

Answer:

23

Step-by-step explanation:

5-3=2

7-5=2

21+2=23

its adding 2 each time the numbers change

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