What is the following product?

(startroot 12 endroot + startroot 6 endroot) (startroot 6 endroot minus startroot 10 endroot)

a. 6 startroot 2 endroot minus 2 startroot 30 endroot + 6 minus 2 startroot 15 endroot
b. 6 startroot 3 endroot minus 6 startroot 5 endroot
c. 3 startroot 2 endroot minus startroot 22 endroot + 2 startroot 3 endroot minus 4
d. 2 startroot 3 endroot + 6 minus 2 startroot 15 endroot

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.