#### Explanation:

I am assuming the question wants tip applied first since it is stated first in the problem.

Convert percents to decimals
15%=.15
8%=.08

Now we can set up an equation to determine the cost after tip and solve for $x$
x=$54+(.15*$54)
x=$62.10 Now we can use the new price to set up a new equation to determine the cost after tax and solve for $x$x=$62.10+(.08*$62.10) x=$67.07 rounded to the nearest cent