K+5/3=-7/4 please help

896.31 cm= km 100cm = 1m 1000m = 1km a) 0.0089631 b) 0.0089631 c) 8.9631 d) 89.631

Which statements about these triangles is true

Write an expression that has three terms and simplifies to 4x - 7. identify the coefficient(s) and constant(s) in your expression