 
<translate> Ọ chọrọ 1 mkpọ frosting kwa layer cake ma ọ chọrọ ime 3 layer cakes nke mere na 1 * 3 = 3 mkpọ frosting. E nwere cupcakes iri na isii, 12 achịcha na-ekoghị eko na pan 18 nke brownies maka ngụkọta nke 6 + 12 + 18 = iwu 36. Nke ọ bụla n'ime iwu iri atọ na isii ahụ chọrọ ọkara ọkara nke frosting nke mere na ha chọrọ 36 *.5 = 18 mkpọ frosting. Ọ chọrọ katọn 3 nke ice cream maka achịcha layer na katọn 18 maka ihe ndị fọdụrụnụ maka ngụkọta nke 3 + 18 = 21 katọn ice cream. Ya mere, azịza ya bụ 21. <eng> He needs 1 can of frosting per layer cake and he needs to make 3 layer cakes so that's 1 * 3 = 3 cans of frosting. There are 6 dozen cupcakes,12 single cakes and 18 pans of brownies for a total of 6 + 12 + 18 = 36 orders. Each of the 36 orders needs 1 / 2 can of frosting so they need 36 * .5 = 18 cans of frosting. He needs 3 cans of frosting for the layer cakes and 18 cans for the remaining items for a total of 3 + 18 = 21 cans of frosting. So, the answer is 21. 