Find an equation for the line perpendicular to 2x + 20y = 140 and goes through the point (-7,5).
Write your answer in the form y = mx +b.

Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

Solve the problem by making up an equation. a man could arrive on time for an appointment if he drove the car at 40 mph; however, since he left the house 15 minutes late, he drove the car at 50 mph and arrive 3 minutes early for the appointment. how far from his house was his appointment?