What the vertex of the graph of y=-x^2

What is the absolute value of the complex number -4-sqrt2i

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.

Which of the following is closest to 32.9 x 7.5? a: 232 b: 259 c: 220 d: 265