21. Knowing that you use 245 KWH from 7 a. m. - 7p. m. and 165 KWH from 7p. m. - 7 a. m., answer the follow question using the chart below. Constant Usage
50.05324/KWH
Daytimer (Most usage between 7 am - 7p. m.)
As long as most power used is 7 a. m. - 7p. m., then
$0.05456/KWH
you receive a 20% discount on power usage 7p. m.-7
a. m.
Night Timer (Most usage between 7p. m. - 7 a. m.)
If more than 50% of power usage is outside of 7 p. m. - $0.05281/KWH
7am., then you have to pay the Daytimer rate for all
power usod 7 a. m. - 7p. m.
How much would you have paid on the Constant Usage plan?
$22.37
$21.83
$21.65
$22.08

Part a: sam rented a boat at $225 for 2 days. if he rents the same boat for 5 days, he has to pay a total rent of $480. write an equation in the standard form to represent the total rent (y) that sam has to pay for renting the boat for x days. (4 points)

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?

Classify the following number. −9.070707…