Which Expression is the sum of cubes? A) -24a^15+125b^18
B)-64a^27+b^8
C)27x^9+y^6
D)81x^24+8y^40

Thomas works for a company that occupies a large campus every workday he orders a cup of coffee on campus and the $1.50 cost is automatically deducted from his paycheck. if thomas visits the coffee shop 13 times what will the net change in his paycheck be