1. First, let the purple fish - shaped candy be a, the pink round candy be b, and the colorful round candy be c. - According to the first row a + a + a=42, we can get 3a = 42, and the solution is a = 14. 2. Then look at the second row a + b\times b=75. Substitute a = 14 into it, we get 14 + b\times b = 75, that is b\times…