Valentina has a tray where she keeps all of her important papers. The tray is in the shape of a rectangular prism with no top. A rectangular prism with a length of 12 inches, width of 10 inches, and height of 2.5 inches.
What is the volume of papers that the tray can hold?

In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles. i'm desperate.

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.

If the tip varies directly with the number of guest which equation represents between the tip, t, and the number of guest, g?