I need help with this

Which shows one way to determine the factors of  x3  +  5x2  –  6x  –  30 by grouping? x(x2  –  5)  +  6(x2  –  5)x(x2  +  5)  –  6(x2  +  5)x2(x  –  5)  +  6(x  –  5)x2(x  +  5)  –  6(x  +  5)

Use the data on the dot plot to answer the question.how many people read for more than three hours last week? i'm on a unit test review

Select all of the following expressions that are equal to 2.5.