Answer:
Question 2:
Genotype — 1BB : 2Bb : 1bb
Phenotype — Three white rabbits : one brown rabbit
Question 3:
You got this one correct on your paper.
Question 4:
You Punnett square will look like this:
T t
T TT Tt
T TT Tt
Genotype — 2TT : 2Tt
Phenotype — Four tall plants. Could also be phrased as: "all tall plants".