2. Rewrite the expression by collecting like terms. 1/4n + 1/3b + 1/2b - 4/6a = [! (6.5 points)
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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.

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.