Anorman window with outer perimeter 20 ft is to be constructed.
h = length of the rectangle
r is radius of the semi circle

express h in terms of r.

express the area of the window in terms of the radius, r.

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

What is the value of m in the equation 1/2 m - 3/4n=16 when n=8

Yesterday, george drank 1 small bottle and 2 large bottles, for a total of 1,372 grams. the day before , he drank 1 small bottle and 1 large bottle, for the total of 858 grams. how many grams does each bottle hold?