Answer:
Step-by-step explanation:
Given
Jar contains 15 Green and
15 Purple marbles
Total marble
Probability of Picking a Purple marble is



Therefore probability of picking a marble is 
Answer:
Lines that are parallel have the same gradient.
Since the line is y=-5/6x-4,the gradient of the line parallel to this line is also -5/6.
So the equation of the line parallel to y=-5/6x-4 is y-(-2)=-5/6(x-(-6))--->y=-5/6x-7.
Lines that are perpendicular fulfill the requirement: gradient 1×gradient 2=-1 . Then once you find the gradient of the line, you can find the equation of the line.
It would be 1800 bc if you do 60x3=180 180x10=1,800