What is 0.26% of400 ?

If given an equation of a line such as -1/2x+6 how would you create an equation of a line parallel and perpendicula to this line that goes through another point such as (4,10)

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

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?