Justin is selling cans of soda. it costs him $3 each week to advertise his business. he buys each can for $0.30 and sells each one for $1.00. write an equation to model the amount of profit, p, justin makes from selling x cans of soda in one week. a. p = x − 3 b. p = 0.3x − 3 c. p = 3x + 0.7 d. p = 0.7x − 3

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?