Find the gradient of the line segment between the points (2,3) and (4,7)

Why do interests rates on loans to be lower in a weak economy than in a strong one

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41