The tie on this apron is a really long piece of 2-inch tape. (It's folded in half vertically so the finished width is 1-inch.)  

Piece together the three 4-inch strips in the manner shown above. If you've never done this before click here for a more in depth explanation. Cut this long sewn together strip so that it's 95-inches long.

Iron the long strip through the bias tape maker. If you've never done this before click  here for more information.

Press your long strip in half lengthwise and pin the sides together with the right side out.

Tuck the end edges in neatly before you pin the ends shut.

Sew the tie closed  using a 1/4-inch seam allowance. (You don't need to sew the ends closed if you've tucked them in as shown in the second picture above. It will be easier to thread the tie through the apron if you don't sew the ends shut.)