## Algebra 1

a) Total students: $252+135+432+81 = 900$ Walk: $252/900 = .28$ Bicycle: $135/900 = .15$ Bus: $432/900 = .48$ Car: $81/900 = .09$ $.28*360 = 100.8$ degrees $.15*360 = 54$ degrees $.48*360 = 172.8$ degrees $.09*360 = 32.4$ degrees c) $252/81 = 3.11$