Simplify.
(x^2+5x+13)(x^2+6x+7)

a) x^4+30x^2+84

b) x^4+11x^3+49x^2+107x+84

c) x^4+37x^2+84

d) x^4+6x^3+7x^2+11x+19

What is the answer to the question 5x+2x

Select the correct answer from each drop-down menu. james needs to clock a minimum of 9 hours per day at work. the data set records his daily work hours, which vary between 9 hours and 12 hours, for a certain number of days. {9, 9.5, 10, 10.5, 10.5, 11, 11, 11.5, 11.5, 11.5, 12, 12}. the median number of hours james worked is . the skew of the distribution is

What is the perimeter of a rectangle if the length is 5 and the width is x?