Which atom is bonded to carbon adam in the functional group of a keytone

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 .

Asequence is defined recursively using the formula f(n + 1) =f(n) - 5. which sequence could be

What is the factor form of x^2-9x+14