James invested $600 in a savings. he earned simple interest of $48 after one year. if john invests $800 at the same rate for a year, how much simple interest will john earn on his $800 investment?

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

The length of the line segment joining the midpoints of sides ab and bc of the parallelogram abcd is 10. find the length of diagnol ac

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.