3/4 divided by -1/4 simplest form

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined

Find the value of x. give reasons to justify your solutions! c ∈ ae

Rick is driving to his uncles house in greenville,which is 120 miles from ricks town .after covering x miles rick she's a sign stating that greensville is 20 miles away. which equation when solved will give the value of x. a: x+120 = 20 b: x x120 =20 c: x +20 equals 120 d: x x20= 120