A family of two adults and three children went to a water park. Admission to the water park costs $18 per person. Nora used the expression to model the total cost for the family, and Alex used the expression . Which property of operations makes both of their expressions correct?

When multiplying two negative integers, what is the sign of the product?
Yasmine finds the absolute value of –655. Which expression represents this value?




What is the value of ?





Which number is the additive inverse of –5?


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