Answer: 381.7
Step by step explanation:
Simplify the radical, then combine the numbers.
-131
Answer:

Step-by-step explanation:

Distribute 2 through the parentheses


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The correct option is -33/65.
The solution is given below:
Answer: 
Step-by-step explanation:
(a) Given
Sam charge $5 for each dog for a thirty minute walk
For an hour which is double the thirty minutes, it must be double of the same charge.

(b)Given
With $20, Christie sells 100 cups of lemonade with a quarter per cup charge
For 100 cup, she generate a revenue of

So, she earns
that is , her profit is 