Which of these prevents outsiders from hacking into a computer system? A. Firewalls
B. Software back-up
C. Information encryption
D. Video cameras

Kayla and jada are roommates in new york city. both kayla and jada recently received pay raises. kayla now buys more movie tickets than before, but jada buys fewer. kayla behaves as if movie tickets are goods and jada's income elasticity of demand for movie tickets is

Teller co. is planning to sell 900 boxes of ceramic tile, with production estimated at 870 boxes during may. each box of tile requires 44 pounds of clay mix and a quarter hour of direct labor. clay mix costs $0.40 per pound and employees of the company are paid $12.00 per hour. manufacturing overhead is applied at a rate of 110% of direct labor costs. teller has 3,900 pounds of clay mix in beginning inventory and wants to have 4,500 pounds in ending inventory. what is the total amount to be budgeted for manufacturing overhead for the month?

Abakery wants to determine how many trays of doughnuts it should prepare each day. demand is normal with a mean of 5 trays and standard deviation of 1 tray. if the owner wants a service level of at least 95%, how many trays should he prepare (rounded to the nearest whole tray)? assume doughnuts have no salvage value after the day is complete.