Miko's restaurant bill was $16. She used the expression 1.18 (16) to find the total cost, including an 18% tip. Which expression is equivalent to the amount Miko paid?

(1+0.18) 16

(16+0.18) 16

16 + 1.18

1+0.18 (16)

Restaurant bill amount excluding tip = $16.

Tip is 18% of the billed amount.

18% can be written in decimal form as 0.18.

18% of 16 = 0.18 * 16.

Total amount including tip amount = 16 + 0.18 * 16.

Factoring out 16, we get

16 (1+0.18).

We can see we get same expression in first option.

Therefore, (1+0.18) 16 expression is equivalent to the amount Miko paid.