Which of the following would best be solved using factoring by grouping? Group of answer choices

LaTeX: 3x^2 + 12x = 8 3x2+12x=8

LaTeX: x^2 = 25 x2=25

LaTeX: x^3 + 5x^2 - 9x - 45 = 0 x3+5x2−9x−45=0

LaTeX: x^2 + 3x - 10 = 0

Mary had at least an 80% on her test write an inequality to represent this situation

According to the number line, what is the distance between points a and b? v ++ + + + + -16 -14 -12 -10 -8 + 6 + 4 + -2 + 0 + 2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 o6 units o 7 units 12 units o 14 units

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.