A coffee table is on sale for 20% off the original price of $115.
If there is 7.5% sales tax, what is the final price of the coffee table?
The 20% discount on the coffee table is $115 x 0.20 = $<<115*0.20=23>>23.
So, the original price of the coffee table is $115 - $23 = $<<115-23=92>>92.
The sales tax for the coffee table is $92 x 7.5/100 = $<<92*7.5/100=6.9>>6.9.
Therefore, the final price of the coffee table is $92 + $6.9 = $<<92+6.9=98.9>>98.9. Answer: \boxed{98.9}.