Please help me solve this problem

Why do interests rates on loans to be lower in a weak economy than in a strong one

Matt had 5 library books. he checked out 1 additional book every week without retuening any books. whats the matching equation

The power generated by an electrical circuit (in watts) as a function of its current c (in amperes) is modeled by p(c)= -15c(c-8) what current will produce the maximum power?