"lucy owns a bakery in 2006 she sold pies for $9.50 each in 2010 she sold pies for $17.50. find the rate of change for the price of a pie from 2006 to 2010"

Line cd passes through points c(1, 3) and d(4, –3). if the equation of the line is written in slope-intercept form, y = mx + b, what is the value of b? –5 –2 1 5

The water has been on the stove y=9.5x+62.1 after how many minutes will the tempature be 138.1 f

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.