问2道SAT数学题目.
(1)If537(的102次方)werecalculated,itwouldhave279digits.Whatwouldthedigitfarthesttotherightbe(theonesdigit)?
A1B3C4D7E9
(2)Aperformancewasratedona3-pointscalebyanaudience.Aratingof1wasgivenby30%oftheaudience,aratingof2by60%,andaratingof3by10%.Tothenearesttenth,whatwastheaverageoftheratings?
A1.2B1.5C1.8D2.0E2.2