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What’s 8y+48 and factor each expression completely

Maria found the least common multiple of 6 and 15. her work is shown below. multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, . . multiples of 15: 15, 30, 45, 60, . . the least common multiple is 60. what is maria's error?

Eden has a part time job. she is paid ? 7.20 an hour the week she worked 18 and a half hours how much is she paid