How much percentage of data lies with in ± 1 from the following date [5] 21, 17, 24, 15, 28, 10

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

Acourt reporter is transcribing an accident report from germany. the report states that the driver was traveling 80 kilometers per hour. how many miles per hour was the driver traveling?

Larry wants to buy some carpeting for his living room. the length of the room is 4 times the width and the total area of the room is 16 square meters. what is the length of the living room