 
 <translate> The second guinea pig eats 2 x 2 = 4 cups of food. The third guinea pig eats 4 + 3 = 7 cups of food. Therefore, Rollo needs a total of 2 + 4 + 7 = 13 cups of food for the guinea pig. So the final answer is 13. <ibo> Onye nke abụọ na-eri 2 x 2 = 4 iko nri. Onye nke atọ na-eri 4+3= 7 iko nri. Ya mere, Rollo chọrọ ngụkọta nke iko nri 2 + 4 + 7 = 13 maka oke bekee. Ya mere, azịza ikpeazụ bụ 13. 