Are the expressions 8x2 + 3(x2 + y) and 7x2 + 7y + 4x2 – 4y equivalent? Which best explains your reasoning? The expressions are not equivalent. One simplifies to 1122 + 3y while the
other simplifies to 9x2 + y + 3.
The expressions are equivalent. They both simplify to 11x2 + 3y.
The expressions are equivalent. They both simplify to 9x2 + y +3.

Dropping less than two inches per mile after emerging from the mountains, a river drains into the ocean. one day's discharge at its mouth, 5.6 trillion gallons, could supply all of country a's households for seven months. based on this statement, determine how much water an average household uses each month. assume that there are 100 million households in country a. country a uses approximately nothing gallons per household per month.

If you answer right ill give brainliest, : )

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.