What is parallel to the line 5x-3y=-6

Which of the following represents the length of a diagonal of this trapezoid?

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?

Find a third-degree polynomial equation with rational coefficients that has roots -2 and 6+i