Can someone please do number 30.

Write a story that matches with the expression 42x-5 pls hurry

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,

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?