Answer:
Sara has the lightest cat, which weighs approximately 5.48 kilograms
Explanation:
To compare the weights of Mona's, Noura's, and Sara's cats
let's simplify the expressions:
1. Mona's cat weighs 3.9 kilograms.
2. Noura's cat weighs 3*68 kilograms, which is 204 kilograms.
3. Sara's cat weighs the square root of 30 kilograms.
Now, we can compare their weights:
1. Mona's cat: 3.9 kilograms
2. Noura's cat: 204 kilograms
3. Sara's cat sqrt(30) kilograms
(approximately 5.48 kilograms)
So, Sara has the lightest cat, which weighs approximately 5.48 kilograms