Miguel withdrew $20 per week from his bank account for 4 weeks. Which expression shows the change in his account balance? A. -20+4
B. -20-4
C. -20x4
D. -20 ÷4

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !

Acomposition of transformations maps δxyz to δx"y"z". the first transformation for this composition is , and the second transformation is a 90° rotation about point x'.

Which diagram shows lines that must be parallel lines cut by transversal?