<span>This is the term used to describe economic systems in which the basic economic questions are answered based on a socially, pre-established way.</span>
Expand the equation.
Multiply (distribute) the first numbers of each set, outer numbers of each set, inner numbers of each set, and the last numbers of each set.
Combine like terms.
Solve the equation and simplify, if needed.
Almost all correct except two. Please check corrected image.
.10 because 1.10 - 1.00 = .10