Sky high school ordered two laser printers plus a supply of toner cartridge for them. each printer cost $675, and each cartridge cost $80. if the total cost was $2310, how many cartridges was ordered

Twenty-five percent of the customers entering a grocery store between 5 p.m. and 7 p.m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

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.