Alicia is investing in a savings account that pays 12.7% interest compounded weekly. She invests $8,680 for 7 years.
How much interest has she earned after 7 years?
$21092.93
$16396.52
$7716.52
$12412.93

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

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?

When is g(x) = 0 for the function g(x) = 5.23x + 4?