using the expression you created above calculate the cost of the same family of four staying at the inn for 3 nights

See the post below.

We'll be glad to check your answer.

142

That isn't an expression.

To calculate the cost of the same family of four staying at the inn for 3 nights using the expression above, you can multiply the cost per night by the number of nights.

So, if the cost per night is $150, the calculation would be:

Cost of staying for 3 nights = (Cost per night) x (Number of nights)
= $150 x 3
= $450

Therefore, the cost of the same family of four staying at the inn for 3 nights would be $450.