Explain how the reasoning above shows that m angle ced = 40

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.