After eating at a restaurant alex bill before tax is 78 the sales tax rate is 8% Alex decides to leave a 20 % tip based on the pre -tax amount how much money will alex pay in total including the tip and tax

Can you me with this question? i'll reward *30 points i just need with this one question so that i could solve the others. * edit: i originally set up the question to reward 30 points, but for some reason i can only reward 15. if you don't get 30, then i'm sorry. i'm still kind of new to this site