Answer:

Step-by-step explanation:

S=k, a=4k-2
Annika rides her bike so she must travel some positive distance, ie a>0 so:
4k-2>0
4k>2
k>1/2 and that k is how far Sam rode, so Sam must ride his bike more than 1/2 kilometer.
Answer:
13%
32%
And I have no idea about the last one im sorry
Step-by-step explanation:
But .13 have a part time job and participate in school clubs only and the percentage of that is 13%. .32 have no part time jobs and that is 32%.
These are just my guesses but I have no idea about marginal frequecies tbh. If I had that I would just put these for me but yea. Sorry if this isn't helpful