Awoman standing on a cliff at the edge of the ocean spots a raft. her eye level is 18 meters above sea level and the angle of depression is 7 degrees. to the nearest thousandths of a meter find the distance from the raft to the base of the cliff.

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?

14+2 (56-1) this is an arithmetic sequence

Francesca had 32 cups of flour and she uses 3/8. how much flour did francesca use? write the equation.