HURRY whats the rate of change

Write two subtraction equations that are equivalent to 5 + 12 = 17.

Asailor is looking at a kite. if he is looking at the kite at an angle of elevation of 36and the distance from the boat to the point where the kite is directly overhead is 40 feet, how high is the kite?

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.