Explain how to get the variable alone in the equation 13.7 + r = 21.4

Which of the following expressions is equal to 2x^2+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.

Cody ran nine miles on his first day of training. the next day he ran 1/8 that distance. how far did he run the second day?