Hi! need desperately! the area of a triangle sign is 81 ft^2. if the base of the sign is 18 feet, what is the height of the sign?

What is the result of converting 60 ounces to pounds remember there are 16 ounces in a pound

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Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.