In which situation will the end result be valued at 0? A stock price rises
12
cents on Monday and falls
4
cents each day on Tuesday, Wednesday, Thursday, and Friday. How much did the stock's value change this week?
A stock price rises 12 cents on Monday and falls 4 cents each day on Tuesday, Wednesday, Thursday, and Friday. How much did the stock's value change this week?

A potassium ion has
19
protons which each have a charge of
+
1
. It has
18
electrons which each have a charge of
−
1
. What is the overall charge of the potassium ion?
A potassium ion has 19 protons which each have a charge of plus 1. It has 18 electrons which each have a charge of negative 1. What is the overall charge of the potassium ion?

A stock price falls
16

cents on Monday and rises
4
cents each day on Tuesday, Wednesday, Thursday, and Friday. How much did the stock's value change this week?
A stock price falls
16

cents on Monday and rises 4 cents each day on Tuesday, Wednesday, Thursday, and Friday. How much did the stock's value change this week?

A chlorine ion has
17
protons which each have a charge of
+
1
. It has
18
electrons which each have a charge of
−
1
. What is the overall charge of the chlorine ion?