The company president sets a goal that the percentage of working phones must increase from 30% to atleast 80% by the end of the day a. 3/10+x/x> =8/10 b. 3/10+1/x> =8/10 c. 3x/10x> =8/10 d. 3x+x/10+x> =8/10

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?