You multiply 76 by 0.93. That is 70.68 which rounds to 71. To check, (71/76) = ~93.
Another quadrilateral that you might see is called a rhombus. All four sides of a rhombus are congruent. Its properties include that each pair of opposite sides is parallel, also making it a parallelogram. In summary, all squares are rectangles, but not all rectangles are squares.
The equation should be 7x^2 -x-9=0
OK. So I hiked 7 and 5/8 miles last month. (In my dreams !). Do you have a question to ask ?