What is the sum of difference
1. 15b^5 + 22b^5
2. 19x^3 - 13x ^3
3. find the difference
(7a^5 + 3a^2 -5) - (7a^5 + 8a^2 -2)

Atriangle has an area of 72 square inches. if the base of the triangle has a length of 18 inches, what is the height of the triangle? use the formula for the area of a triangle: area = (base)(height) type a numerical answer in the space provided. do not include the units or spaces in your answer.

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How can constraints be used to model a real-world situation?