Plz help CCSS. MATH. CONTENT.7.NS. A.1.A
Use the following table to answer the question below.

Element Hydrogen Oxygen Carbon Nitrogen Helium Sodium Fluorine
Charge -3 -2 -1 0 1 2 3

Which element combine with hydrogen will get a charge of zero?

CCSS. MATH. CONTENT.7.NS. A.1.B, CCSS. MATH. CONTENT.7.NS. A.1.C
3. Ezra record a temperature of – 5 degrees Celsius at 5 am. At 10 a. m., temperature increase 10 degrees Celsius. Around noon, the temperature increased another 5 degrees Celsius. A 6:00 p. m., the temperature decreased 15 degrees Celsius. What is the temperature at 6:00 p. m.?

CCSS. MATH. CONTENT.7.NS. A.1.D
4) Use the number line below to evaluate the following expression.

-2 1/4 + 4

CCSS. MATH. CONTENT.7.NS. A.2.A
5) Jerry argues the following expression represents a negative product. On the hand, Cindy argues the product in a positive integer. Who is correct? Use RACE format to show your response.
(-9) (1/4) (-5.5) (-25%) (- 3 ½)
A

C

E

CCSS. MATH. CONTENT.7.NS. A.2.B
Is the following equation a true statement? Use ace format to show your response.

2/(-4) = (-2)/4 = - 2/4

A E

C
CCSS. MATH. CONTENT.7.NS. A.2.C
7) Mike has a difficult time evaluating the following numerical expression. As a result, Mr. Richmond instructed you show Mike how to do.

(-24)/8 + 5 (- 4) + 2(- 5 + 4)