You are running a concession stand selling nachos and sodas. each nacho costs $2.50 and each soda costs $0.50. at the end of the night you made a total of $80.50. if you sold a total of 77 items, how many nachos and sodas did you sell?

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5

The sum of five and a number n is at least 12