Sarah's age is four more than twice her brothers age. write two equivalent algebraic equations that can be used to find their ages.

15 points ! ~ see if you know the answer to both you!

Find the equation of a line whose slope is 2/5 and y- intercept is 2.write your answer in the form 1) ax+by+c=02) x/a+y/b=1

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0