The perimeter of a rectangular plot of land whose length is (2x+5)m and width (x-10)m is 80m. Find the i)value of x
ii)area​

Country carpets charges $22 per square yard for carpeting, and an additional installation fee of $100. city carpets charges $25 per square yard for the same carpeting, and an additional installation fee of $70

Jamie is hiking up a small mountain. he climbs up at a constant rate of 300 feet/hour until he reaches the peak at 1,500 feet. after that, he hikes down at the same rate to the base of the mountain. the equation that models jamie’s elevation, e, after t hours is e = . jamie’s elevation will be 600 feet after hours and after hours.

Which of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?