In a school experiment the temperature of a substance is changed from 42 degrees f to -54 degrees f at an average rate of 12 degrees per hour. over how many hours does the change take place?

Seattle, washington is known for being rainy. one day last month, 8 inches of rain fell in 1 1/2 hours. what us the rate of the rainfall expressed in ft per plzzz write a proportion i will give you 100 points

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2

Light travels at 186,000 miles per second. light takes about 1 1? 3 seconds to travel from the earth to the moon. calculate the distance between the earth and the moon based on the speed of light.