At the city museum, child admission is $5.20 and adult admission is $9.00. On Sunday, 143 tickets were sold for a total of $1040.00. How many child tickets were sold that day?

You would do 1500/4 and the answer is 375

I'd say your answer would be the sides of a metal pan become hot when the pan is placed on the stove burner

So the main goal for the elements is stability which is a complete/full valence shell and typically the magic number for a stable element is 8 valence electron but not always. so elements to the left of the periodic table tend to be way less stable then those on the right, so the elements on the left are much more reactive.

A. sigma your welcome