find an equation in slope intercept form that passes through (4,-5) and is parralell and perpendicular to 3x-5y=15​

Given: △abc, ab=15, bd=9 ad ⊥ bc , m∠c=30°. find: the perimeter of the triangle.

What is the ordered pair of m’ after point m (5, 6) is rotated 90° counterclockwise?

Will mark 50 show all what is the solution to the system of equations? use the substitution method and show your work. -5x+y= -3 -15 x+3y=7 explain what your answer in part (a) tells you about the association of the lines in this system.