The lengths of the sides of a triangle are 4, 5, 6. can the triangle be a right triangle?

When 142 is added to a number the result is 64 more then 3 times the number. option 35 37 39 41

Write an equation of the line that passes through the point (2, 3) and is perpendicular to the line x = -1. a) y = 1 b) y = 3 c) y = 0 eliminate d) y = -3

Can someone explain to me how to do