Ajewlery supply shop buys silver chains from a manufacturer for c dollars each, and then sells the chains at a 57% markup. write the markup as a decimal.

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

Explain how you could use the interactive table to tell if sets of points are on the same line. math 8

Graph the system of equations on your graph paper to answer the question. {y=−x+4y=x−2 what is the solution for the system of equations? enter your answer in the boxes.