Question 1126573
Light travels 1.18 x 10^10 in. In 1 second. How far will light trav in 1 nanosecond or 1 ×10^-9 s? 
Should I multiply or divide?
<pre>You need to multiply. When you do, you should get a distance of 11.8 inches.
ALL other answers are WRONG, so IGNORE them!!
You can set up a PROPORTION as follows: {{{matrix(1,3, (1.18 * 10^10)/D, "=", 1/(1 * 10^(- 9)))}}}, with D being the distance. 
You now see that distance, or D = {{{highlight_green(matrix(1,8, (1.18 * 10^10) * (1 * 10^(- 9)), "=", 1.18 * 10^(10 - 9), "=", 1.18 * 10^1, "=", 11.8, inches))}}}