How do concerts benefit the economy?

Science always prove or disprove their explanations by

Sorry about the calculator and me asap me asap because for real like some no one answers question one for me so that's why i'm posting them over to that way someone can at least answer number two or one for me if you do you so much if you do it would be a complete big blessing to me

Which of the following is one of the painting steps in cennino cennini’s painting handbook? a. cover with linen soaked in gesso b. lay down blocks of color c. paint the darker areas