The world population in 2013 was about 7.125 billion. in 2003, it was about 6.357 billion. which number represents the increase in the world population between 2003 and 2013? a. 0.0768 × 10^7b. 0.768 × 10^8c. 7.68 × 10^9d. 7.68 × 10^8

How do you do this geometry problem

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.

Simplify -4z+2y-y+-18z a.-22z+y b.-14z+2 c.3y+22z d. y +14z