PLLEASSEE HELP! CONFUSED ON THESE TWO QUESTIONS. ANSWER WOULD HE APPRECIATED :)

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% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

Rewrite the following quadratic functions in intercept or factored form. show your work. f(t) = 20t^2 + 14t - 12