First problem there are 11

The sum of two numbers is 86, and their difference is 20. find the two numbers

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

Find the equation of a line that is perpendicular to line g that contains (p, q). coordinate plane with line g that passes through the points negative 3 comma 6 and 0 comma 5 3x − y = 3p − q 3x + y = q − 3p x − y = p − q x + y = q − p