(use the formula for the present value of an ordinary annuity or the amortization formula to solve the following problem pv = $12,000: pmt-5500 40: type an integer or decimal rounded to three decimal places as needed) enter your answer in the answer box and then click check answer all parts showing

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.

Use set buikder notation to represent the following set: {, -2, -1, 0}

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.