Write the numeral in base ten.

Question

7001eight.

Answer 1

Since a number to base eight has each digit value equal to powers of eight, you can multiply each digit by the appropriate power of eight.
For example,
1234₈
=4*8⁰+3*¹+2*8²+1*8³+
=4*1+3*8+2*64+1*512
= 668₁₀

You can do the same for 7001₈ to get 3585₁₀.

Answer 2

7001 in base ten is:

1x(8^0)+0x(8^1)+0x(8^2)+7x(8^3)=1+7x512=1+3584=3585

Answer 3

Thank you both!