The lines 2x=ky+2 and (k+1)x=6y-3 have same gradient. Find possible values of k I need the answers ASAP please!

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.

How to write four times a number, minus 6,is equal to theee times the number+8 as an equqtion

Dana wants to identify the favorite professional baseball team of people in her community. she stands outside a local sporting goods store and asks every other person who enters, "what is your favorite professional baseball team? " will the results of her survey be valid? explain.