Tia made a scale drawing of the white house for her history project. the actual length of the building is 168 feet, and its width (with porticoes) is 152 feet. if the scaled length of the building in the drawing is 21 inches and the width is 19 inches, what scale did tia use to make the drawing?

Julia measured the high temperature in her town for one week. using the chart above, find the mean absolute deviation for the high temperatures. round your answer to the nearest tenth. be sure to show your work for finding: the mean of the set of data the distance of each number from the mean the mean absolute deviation

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.