Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
Sidney has 4 kittens and 3 adult cats.  She has 7 cans of cat food.  Each adult cat eats 1 can of food per day.  Each kitten eats 3/4 of a can per day.  How many additional cans of food does Sidney need to buy to feed all of her animals for 7 days.

### Response:
 Sidney ana paka wakubwa 3 * kopo 1 ya chakula = <<3*1=3>>makopo ya chakula kwa siku.
Paka wakubwa wa Sidney watahitaji makopo 3 * siku 7 = <<3*7=21>>makopo kwa wiki.
Sidney ana paka wadogo 4 * kopo 3/4 ya chakula = <<4*3/4=3>>makopo kwa siku.
Paka wadogo wa Sidney watahitaji makopo 3 * siku 7 = <<3*7=21>>makopo kwa wiki.
Sidney anahitaji kununua makopo 21 + makopo 21 - makopo 7 = <<21+21-7=35>>makopo.