Simplify to create an equivalent expression.
−2(−5n+6)+5(2−7n)
plz help UwU

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β

36 inches/second = yards/minute how many yards?

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0