EXER1ProdutoQuantidadePreo unitrioValorTaxa IVAArroz20.55 1.10 6%Vinho11.88 1.88 13%Vitela1.59.98 14.97 6%Inseticida15.69 5.69 23%Quiejo0.656.99 4.54 6%Saco10.02 0.02 23%Subtotal28.20 6%1.24 IVA13%0.24 23%1.31 Total do IVA2.79 TOTAL A PAGAR30.99

EXER2RefernciaDescrioQuantidadePreo UnitrioTotal ProdutoP001Processador2199.00 398.00 M001Monitor TFT2180.00 360.00 I001Impressora1150.00 150.00 T001Teclado215.00 30.00 C001DVD-R220.00 40.00 S002Scanner1139.00 139.00

Sub-Total1,117.00 Desconto10%Total Desconto111.70 Total Mercadoria1,005.30 IVA23%Total IVA231.22 Total Fatura1,236.52

EXER3NmerosEstrelasNmerosFrequncia dos NmerosEstrelasFrequncia das Estrelas6141742451821-Apr101422430343981117-Apr222224323435491214-Apr313122232530435910-Apr40411825394450587-Apr50522729373949243-Apr61618202428498931-Mar707023032394461027-Mar8185102426394031024-Mar909231437424811020-Mar10110311232648441817-Mar111111120130142150160171181190201210221232244252262271281291303310322330342351360372380395401410422431443451460470482493501