In ASTU, the measure of ZU=90°, the measure of ZS=25°, and US = 15 feet. Find the length of ST to the nearest tenth of a foot.

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

Olga used 100 ounces of flour to make 225 muffins. how many ounces of flour will be used to make 300 muffins?

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a. m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?