In incomplete dominance,which ratio does not match with Mendel's monohybrid cross?

In incomplete dominance,

In Antirrhinum,two plants with pink flowers were hybridized. The $F_1$ plants produced red,pink,and white flowers in the proportion of $1$ red,$2$ pink,and $1$ white. What could be the genotype of the two plants used for hybridization? Red flower color is determined by $RR$,and white by $rr$ genes.

In $Mirabilis$ $jalapa$,crossing red $(RR)$ and white $(rr)$ flowers produces pink $(Rr)$ flowers. If a white-flowered plant is crossed with a pink-flowered plant,what will be the expected phenotypic ratio of the offspring?

In a cross of red and white flowered snapdragon plants,$F_1$ plants will have flowers of which color?

$RR$ (Red) is crossed with $ww$ (white),all the $Rw$ offsprings are pink. This is an indication that $R$ gene is