A line crosses through the points (0, 2) and (-10, -16). What is the slope of the line?

△cde maps to △stu with the transformations (x, y) arrowright (x − 2, y − 2) arrowright (3x, 3y) arrowright (x, −y). if cd = a + 1, de = 2a − 1, st = 2b + 3 and tu = b + 6, find the values of a and b. the value of a is and the value of b is .

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.