Kevin weighs himself and discovers he weighs 78,900 grams. How many kilograms does Kevin weigh?

Which expression gives you the distance between the points (5,1)and(9,-6)

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

What is the missing reason in the proof? segment addition congruent segments theorem transitive property of equality subtraction property of equality?