Step-by-step explanation: The X and Y values can be considered terms in certain situations, and since 7 & 4 are the X and Y values, they are the terms.
Area of a trapezoid: [(top +bottom)*height]/2 suppose the length of one base is x, then the other base is 5x-19 [(x+5x-19)*18]/2=477 [6x-19]*18=954 6x-19=53 6x=72 x=12 The longer base is 5*12-19=41