Zeti deposited RM50 every week into an account which pays 20% compounded weekly. After three years, she withdrew a certain amount of money and the balance in
her account was RM660.30. How much was her withdrawn?

In one day there are too high tides into low tides and equally spaced intervals the high tide is observed to be 6 feet above the average sea level after six hours passed a low tide occurs at 6 feet below the average sea level in this task you will model this occurrence using a trigonometric function by using x as a measurement of time assume the first high tide occurs at x=0. a. what are the independent and dependent variables? b. determine these key features of the function that models the tide: 1.amplitude 2.period 3.frequency 4.midline 5.vertical shift 6.phase shift c. create a trigonometric function that models the ocean tide for a period of 12 hours. d. what is the height of the tide after 93 hours?

Mr. walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?

How can you find the magnitude of a vector, v = < x, y > , where the horizontal change is x and the vertical change is y?