A restaurant bill is $27.50. If the sales tax is 7.5% and a 20% tip is added, what is the total cost of the meal? Please don't give me the answer, just give me the explanation

What is the square root of 45? (step by step working plz)

Answer this question only if you know the answer! 30 points and

Afurniture store has 1,500 chairs in storage. a manager uses three delivery receipts to simulate samples to check 100 chairs and note the number of brown chairs. suppose the actual number of brown chairs is 1,080. about how many brown chairs are