The volume is 70/9 or 7 7/9.
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Kilobyte = 2^10 bytes
gigabyte = 2^30 bytes
terabyte is the product of a kilobyte and a gigabyte....so we multiply
2^10 * 2^30 = 2^(10 + 30) = 2^40 <== a terabyte
** exponent rule : a^b * a^c = a^(b + c)
One expression could be.... Nine times 4 plus five equals forty one. ALSO... Eight times eight equals sixty four then subtract twenty four equals forty one