If x = 4 y =1 and z =2 find the value of 2x + y/ y + z​

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

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?