Mary worked 40 hours one week and 39.5 hours the next week. she is paid 1pc
$5.40 per hour. what is her gross pay for the two weeks?

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 .