In a science experiment the temperature of a substance is changed from 42 °F to - 54 °F at an average rate of - 12 degrees per hour. Over how many hours does the change take place? The answer is 8 hours I need the work for it though.

How tall is 59 and 1/2 inches? ft wise

Line v has a slope of - 5/2 Line w is parallel to line v. What is the slope of line w? Simplify your answer and write it as a proper fraction, improper fraction, or integer,

Item Cost When the movie is half over, popcorn sells for half price. Which expression can be used to determine the new cost for 3 orders of popcorn and 3 drinks? adult ticket $9.00 child ticket $6.00 drink $1.35 $3.50 popcorn veggie cup $1.

What is 47/4 as a decimal

A train station employee collects data on 160 incoming trains to the station. He notices that 18 of the 90 incoming trains on line A arrive late, and 14 of the 70 incoming trains on line B arrive late.

The formula for the volume of a cube is v (s) = s^3 where s is the side length of the cube. What is the domain and range of this function?

The graph of which function has a minimum located at (4, - 3) ? f (x) = - 1/2x2 + 4x - 11 f (x) = - 2x2 + 16x - 35 f (x) = 1/2x2 - 4x + 5 f (x) = 2x2 - 16x + 35

Determine if the equation x2 - y = 1 defines y as a function of x.

What is 3 3/4 times 2 12/1

What are the next two terms of the following arithmetic sequence - 3, 1, 5, 9, ...