Free pints for puppy raiser

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*

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?