Which property is illustrated (m+7.3)+4.1=m+(7.3+4.1)

The weight of an object in a particular scale is 175.2 lbs. the measured weight may vary from the actual weight by at most 0.1 lbs. what is the range of actual weights of the object

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

The graph of f(x) = |x| is transformed to g(x) = |x + 11| - 7. on which interval is the function decreasing?