Subtract the following complex numbers: (3+3i)-(13+15i)
O A. -10 + 18i
OB. 10+ 18i
O C. 10-12i
O D. -10- 12i

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.