Respuesta :

unicorn3125

Answer:

         a₇ = 46 875

Step-by-step explanation:

15:3 = 5  and  75:15 = 5

so this is a geomertic sequence with common ratio of 5

a₁ = 3,  r = 5

aₙ = a₁ rⁿ⁻¹

a₇ = 3(5)⁶ = 3(15 625) = 46 875

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