standard_description: Derive the formula for the sum of a finite geometric series (when the common ratio is not 1), and use the formula to solve problems. For example, calculate mortgage payments.
problem_activity: Solve the inequalities.
a.
$${|x+2|-5≥8}$$
b.
$${-2 \left| {2\over3} x+4 \right| >-16}$$


aligns: no