TÍNH HOA TRỊ CÓ THẺ có của B khi Z=5, F khi Z=9,Cl khiZ=17 theo phương pháp cặp e liên kết

Astore experienced a 14.2% fall in takings in february, compared to the previous month. their takings in february were ? 742,513.20 how much did they take in january?

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?