List the first five terms to the sequence A(n+1) = A(n) + 7 for n>=1 A(1)= -9

5

10

15

20

25

30

35

40

45

50

55

6^2 or 36

step-by-step explanation:

6000n

6×1000n

6×10^3 n

so we need 6n need to be a perfect cube

so n has to be 6^2 so that 6n is 6^3

what i'm saying is if you let n be 6^2 you have 6^3×10^3 or 60^3 which is a perfect cube