Using the properties of integer exponents, match each expression with its equivalent expression.

1)  

2)  

3)  

4)  

Step-by-step explanation:

We need to solve the exponents

1)

We know that:

So, we get

2)

We know that:

So, we get

3)

We know that:

Using this rule:

So, we get

4)  

We know that:

Using this rule:

So, we get

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour