Asection of a boardwalk is made using 15 boards. each board is 914 inches wide. the total width of the section is 144 inches. the spacing between each board is equal. what is the width of the spacing between each board? write your answer in simplest form.

There is a line with slope 1/a going through the point (a, a²). find the equation of the line perpendicular to this line at this point. (don’t let this problem intimidate you! solve the problem as you would if i’d given you specific values. just use variables instead.)

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.

How many square inches are in 60 square feet?