How do you convert 28 degrees celsius to fahrenheit?

Which substance is a steroid? cholesterol fatty acid monosaccharide trans fat

Jenny places a strip of ph paper into a solution. when she removes the ph paper, it has turned yellow-green. what should jenny do next to determine the ph of her solution? a. use a different testing method because the ph paper should not change colors b. place the ph paper into a machine that reads the ph of the solution c. compare the ph paper's color with the color of ph paper from another solution d. compare the ph paper's color with a chart of colors and ph ranges

Imagine that you are buying books one by one and then piling them up after reading them. which geologic concept could you use to identify the topmost book as the newest?