A surveyor is standing 118 feet from the base of the Washington Monument. The surveyor measures
the angle of elevation from the ground to the top of the monument to be 78 degrees. Find the height
of the Washington Monument to the nearest foot (i. e. round to the nearest whole number). Hint:
Draw a picture!

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.