A neutral atom of sodium (Na) has an atomic number of 11 and a mass number of 23. How many neutrons would be found in the nucleus of this atom of sodium?

34

23

12

11

Find the percentage of. 68% of 425

Bo ran 100 meters in 12 seconds. Chris ran 75 meters in 8 seconds. Who ran at the faster rate and what was that rate?

paula riddle charges $2.25 per hour to babysit before 9 pm and $2.75 per hour after 9 pm. if she babysits from 6 pm to 11 pmhow much will she earn?

What is 6x-2y=30 equal to and what is its x intercept

Solve the equation. p-3 = - 4 p=?

How do you write 0.74 as a fraction in simplest form?

Arrange these numbers from least to greatest: 2/5 5/7 4/9 A. 2/5 5/7 4/9 B. 2/5 4/9 5/7 C. 5/7 4/9 2/5 D. 4/9 2/5 5/7

A lady walks in the store and steals $100 bill from the register without the owners knowledge. she comes back 5 min. later and buys $70 worth of goods with the $100.00 the owner give her $30 in change. How much did the owner lose

The sum of the squares of 2 consecutive negative integers is 41. what are the numbers?

Estimate 5.9 * 3.4 a. about 12 b. about 16 c. about 18 d. about 20