3/(x^3y)
7/(xy^4)
To find the LCD you have to use the HIGHEST power of the variables.
x^3y^4 would be the LCD
LETTER A
Answer:
4970
The mean - the median = 4970
B. An account of the impact of human behavior on the environment, C. the story of human activity before writing was developed, D. the story of change over time documented with evidence.