What is the simplified expression for Negative 3 c d minus d (2 c minus 4) minus 4 d?

Me write an equation for the interior angles of this triangle that uses the triangle sum theorem

What is the ratio for the surface areas of the cones shown below, given that they are similar and that the ratio of their radil and altitudes is 4: 3? 23

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days