First add 28.75 and 19.25. Now you have 48. Now add 8 percent sales tax on 48. Change 8 to a decimal so 0.08. Multiply 48x0.08. Now you have 3.84. Add 48+3.84 and you get 51.84. Your final answer is $51.84 :)
To check for
equivalence, use properties of operations such as the Distributive Property.
Two expression are said to be equivalent if they resulted in the same number
after evaluation of each. You can both expand and factor expressions to
generate equivalent expressions.
