Find the angel abc . i do not know how to do the problem

Acontractor needs 54 square feet of brick to construct a rectangular walkway. the length of the walkway is 15 feet more than the width. write an equation that could be used to determine the dimensions of the walkway. solve this equation to find the length and width, in feet, of the walkway.

The suare root of 9x plus 7 plus the square rot of 2x equall to 7

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a