help please: A 15 foot long section beam weighs 3,520 pounds. What is the weight of a 3 foot long section of the beam?

This is different from the first one can someone me

What is the rate of change of a line that passes through (2,-5) and (6,-2)?

Which graph correctly represents the equation  y=−4x−3? guys me iam not trying to fail summer school and will offer 40 points for who ever me with the next 3 problems and will give brainlest