At what minimum temperature will 80 g of KNO3 dissolve in 100 g of water? A. 56 °C
B. 52 °C
C. 37 °C
D. 48 °C

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.

answermeridional ;

gasoline is a mixture. it contains several different kinds of compounds that can be present in a variety of ratios.