7. One of the roots of the quadratic equation 2x² + 6x = 2k – 1 is twice the value of the other root whereby k is a constant. Find the roots and the value of k.
[-1, -2; k =
k
3]
2​

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.

Someone me i need with this stuff

Sweet t saved 20 percent of the total cost of the green-eyed fleas new album let there be fleas on earth. if the regular price is $30 how much did sweet save