A+b+c=4
aa+bb+cc=10
aaa+bbb+ccc=22
++=???

46

Explanation:

The pattern appear to be the answer  multiplied by 2 and adding  2.

i.e., answer to the next raw id answer to the previous answer times 2 plus 2

second raw = (4 x 2) + 2= 10

Third raw = (10 x 2) + 2 = 22

Forth raw = (22 x 2) + 2= 46

answer; i believe that the correct answer is (supply chain);

15 pounds of apples and 6 cups of flour