Will mark brainliest the look-out point of a lighthouse is 50 feet above sea level. a boat is 30 feet away from the base of the lighthouse. what is the angle of depression from the look-out point to the boat in the water? round the answer to the nearest degree. 37° 59° 31° 53°

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

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?