Respuesta :

em6lyn
The answer is 20, because it goes up every time.
hurryburning

Answer:

? = 20 feet

Step-by-step explanation:

4 + 4 = 8

8 + 4 = 12

12 + 4 = 16

16 + 4 = ?

3 + 3 = 6

6 + 3 = 9

9 + 3 = 12

12 + 3 = 15

(?, 15)

(20, 15)

? = 20 feet

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