use the commutative and associative properties as needed to simplify the expression.
(1/3)
(15x) = _

Ineed with math stuff it involves graphs

40 points. given: two congruent angles ∠c and ∠r are supplementary. prove: ∠r and ∠c are both right angles. it doesn't have to be exactly 10 rows.statements reasons1. 1. 2. 2. 3. 3. 4. 4. 5. 5. 6. 6. 7. 7. 8. 8. 9. 9. 10. 10.

Simplify the algebraic expression 8y-2(y+4)