Last one :)

A: 729 in2
B: 81 in2
C: 324 in2
D: 486 in2

Harry owes the bank money. to repay his debt, he paid $150 back to the bank each month. after 10 months, his remaining debt was $6900. what was the original amount of harry's debt? how long did it take harry to pay back his entire debt?

The value of x must be greater than what?

Will positive numbers always have a higher absolute value than negative numbers?