an inflatable pool toy is filled with 8.82 L of air in the summer when the temperature is 29.81. the toy is left outside until winter. what is the volume of air (in L) in the toy when the temperature drops to -12.65. provide your answer with two decimals

The following graph shows the historical concentration of atmospheric carbon dioxide in the atmosphere. Carbon dioxide concentrations began increasing in the 1800s as humans started to rely on combustion for energy (carbon dioxide is a product of combustion). The increase in atmospheric carbon dioxide is linked to the increases in global temperatures known as global warming. What is the total increase in carbon dioxide between 1950 and 2007? What is the average yearly increase in carbon dioxide over this period? What is the total percentage increase in carbon dioxide over this period? What is the average yearly percentage increase in carbon dioxide over this period?

Gaseous methane (CH4) will react with gaseous oxygen (O₂) to produce gaseous carbon dioxide (CO₂) and gaseous water (H₂O). Suppose 14.6 g of methane is mixed with 90. g of oxygen. Calculate the minimum mass of methane that could be left over by the chemical reaction. Round your answer to 2 significant digits. g x10 X Ś

Multiplication and division When multiplying or dividing, the final answer is rounded to the same number of significant figures as the measured number with the fewest significant figures. Addition and subtraction When adding or subtracting, the final answer is rounded to the same number of digits to the right of the decimal point as the measured number with the fewest digits to the right of the decimal point.   Part A Compute 2.345 × 4.48697. Round the answer appropriately. Express your answer numerically using the proper number of significant figures.   Part B Compute 1240.64 / 64. Round the answer appropriately. Express your answer numerically using the proper number of significant figures.   Part C Compute 21405.6 + 9.3456 . Round the answer appropriately. Express your answer numerically using the proper number of significant figures.