One's intelligence quotient, or IQ varies directly as a person's mental age and inversely as that person's chronological age. A person with a mental age of 24 and a chronological age of 35 has an IQ of 120. What is the chronological age of a person with a mental age of 20 and an IQ of 140?

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 .

1) in triangle the, what is the measure of angle t (in degrees)? 2) in triangle bat, the measure of angle b is 66∘, and the measure of angle t is 77∘.what is the measure of the exterior angle at a (in degrees)?

How many ordered pairs of positive integers satisfy xy=32?