Been stuck on this for a few days now, help on even one would be greatly appreciated!!!

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?

(a. s."similarity in right triangles"solve for xa.) 10b.) 20c.) 14.5d.) [tex] 6\sqrt{3} [/tex]

The average length of a king cobra is 3.7 m. the record length is 1.88 m longer than the average. how long is the record holder?