 
<translate> Achịcha ahụ ruru $9 n'ozuzu ya n'ihi na 4 + 2 +.5 + 2.5 = 9. Nke ọ bụla n'ime ha na-efu $1.5 n'ihi na 9 / 6 = 1.5. Nkịta ahụ riri iberibe 4 n'ihi na 6 - 2 = 4. Ọnụ ego nkịta ahụ riri bụ $6 n'ihi na 4 x 1.5 = 6. Azịza ikpeazụ ya bụ: 6. <eng> The cake cost $9 in total because 4 + 2 + .5 + 2.5 = 9. Each slice costs $1.5 because 9 / 6 = 1.5. The dog ate 4 slices because 6 - 2 = 4. The amount the dog ate cost $6 because 4 x 1.5 = 6.
The final answer: 6. 