Write the equation in slope-intercept form. -5x+15y=-30

-please help before 12:00-

How do you convert 1.27 to a percentage

What is the slope of the line shown below?

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.