Answer
For the tall heterozygotes, (5+7)/(42+46+5+7)x100%=12% are recombinants. For the antennae and upturned snout, (2+3)/(2+3+47+48)x100%=5% are recombinants.
Work Step by Step
Just find the percentage of the total number of individuals in each experiment represented by the recombinants (where their phenotypes are not the same as their parents).