shopkeeper allowed 10% discount and sold a rice cooker for Rs. 3051 with 13% VAT and made a profit of 20% . By what percent is the discount to be reduced to increase the profit by 4% ?​

Fred has a total of 62 dvd and cd. if the number of cd is three more than two times the number of dvd, how many cd does he have?

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

Triangle xyz has vertices x(1,3), y(0,0)