In a typical wimbledon tennis tournament, 42,000 balls are used and 650 matches are played. about how many balls are used per match?

The vet charges $45 for an office visit and $10 for each vaccination your dog needs. write an eaquation

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 .

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?