An account earned $143.86 in simple interest over 4 years and 3 months. There were no deposits or withdraws on the account. The interest rate is 0.25%. Which was the principal for this account? A.
$135.40

B.
$152.85

C.
$2,445.62

D.
$13,539.76

Jessica is organizing a guided tour of the rain forest. the average profit per person that the touring company makes is given by the rational expression 18x+35/x, where x is the number of people going on the tour. what does the numerator of this rational expression represents?