Help pls need help before my daughter pls and thank you ​

What is the value of x in the diagram below?

Complete the solution of the equation. find the value of y when x equals to 1 9x-5y=29

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?