Answer:
2/3 or 67%
Step-by-step explanation:
Please kindly check the attached files for details.
6/24 = 0.25....multiply by 100 to get ur percent = 25%
Answer:

Step-by-step explanation:
slope of r:

s is perpendicular to r:

Answer:
b = -6
Step-by-step explanation:
We use the general equation a*x^2 + bx + c = 0, the Quadratic Equation.
Compare it to 2x^2 - 6x - 20 = 0
b = -6 here