Overview
1) Instead of a Mendelian Dom/rec 3:1 system for Rr and Tt you are to assume both genes and alleles operate under a incomplete dominance system. Consult chapter four about the four-O'clocks. Therefore you will have to invent a third phenotype for both genes, and redo the figures for each as well as their combined multiplied total due to independent assortment.
2) You do not need to do the coin explanation again about Mendel's postulates.