The area of a triangle whose height is 1 more than 6 times its base is 13 square feet. If the base of the triangle is x feet, which equation models this situation? A. 6 ⁢ x 2 + x − 12 = 0 B. 6 ⁢ x 2 + x − 13 = 0 C. 6 ⁢ x 2 + x − 26 = 0 D. 36 ⁢ x 2 + 6 ⁢ x − 26 = 0