Plz help me somebody, anybody. my questions always get skipped over!

$5400 is? invested, part of it at 11? % and part of it at 8? %. for a certain? year, the total yield is ? $522.00. how much was invested at each? rate?

Astudent drew a circle and two secant segment. he concluded that if pq ~= ps, then qr ~= st. do you agree with the student’s conclusion? why or why not?

Suppose your sat score is 2040. a college with an average sat score for admintted students of which of these would most likely be your best option?