Based on the information in the table, is the cost of the apples proportional to the weight of apples?

Can any one me with the answers to these questions asap?

With alll of except for the 2 that i did already

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c = f