The equation y =7400x represents the number of miles, y, that the satellite Space Explorer flies in x hours. Find the rate of change.​

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula , what is the temperature in celsius corresponding to r degrees rankine? a. 9/5(c - 273) b. 9/5(c + 273) c. 5/9( c - 273) d. 5/9( c + 273)

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2