Integer Operations 6th grade SOL Review

Which expression is equivalent to the one below? $$-5-\left(-7\right)$$  

The record high temperature for a certain U.S. State is $$104\degree F$$  . The record low temperature for the same state is $$-14\degree F$$  . What is the difference between the high and low temperatures for this state?

A dolphin is 30 feet below the surface of the water. She rises 23 feet, sinks 17 feet and finally rises another 27 feet. If there are no other changes, the dolphin is:

Select each number that can be placed in the blank to make the value of this expression a negative number: $$\left(-5\right)-$$  ____

What is the value of this expression? $$\left(-18\right)-\left(-26\right)\div2$$  

What is the value of this expression?

$$\left(-12\right)-4^2+\left(5\cdot10\right)$$  

Use the number line to complete the sentence.

The value of $$\frac{y}{z}\$$  will be

Using the key as a guide, what is the result of the operation in the model below?

Which number sentence is represented by the model below?

evaluate: $$\frac{9^2-7\cdot8}{5^2}$$