11. In Item 6, the variable j could have been defined as the amount of
money, in dollars, that Julio has.
a. Use j to write an expression to represent the amount of money, in
dollars, that Dan has. Describe the similarities and differences
between this expression and the one you wrote in Item 6.
b. Write and solve an equation using the variable j to represent the
problem situation. Interpret the solution within the context of the
problem.
c. Does the definition of the variable in a problem situation change
the solution to the problem? Explain your reasoning.