we know that
1 terabyte = 1 x 10^12 bytes;
1 gigabyte = 10^9 byte
we have
8 x 10^3 gigabytes
step 1
Convert gigabytes to byte
1 gigabyte = 10^9 byte
Applying proportion
Multiply the number of gigabytes by 10^9 byte
(8 x 10^3)(10^9)=8 x 10^12 bytes
step 2
Convert bytes to terabytes
1 terabyte = 1 x 10^12 bytes
Divide the number of terabytes by 10^12
8 x 10^12/10^12=8
therefore
the answer is 8 terabytes