Writing & Solving Inequalities

A local bakery has a daily operating cost of $1800 plus a cost of $10 per cake they make. If a cake sells for $15, which equation could be used to determine the minimum number of cakes, c, they must sell each day to earn a profit?

Which inequality matches the graph?

The variable, k, is being divided by 11. How should you isolate the variable?

 $$16=\frac{k}{11}$$  

Camie and Jorge each begin saving money for a new computer. Camie saves $5 per week plus $50 she receives for her birthday. Jorge saves $7 per week. Which of the following can be used to find w, the number of weeks until Jorge has saved at least the same amount as Camie?

In an Inequality, you flip the inequality sign when:

Solve:

2x - 9 > 11

Solve:

x/5 + 1 < 11

Solve:
$$-2x+3\ \le\ 13$$  

$$x\ \ge\ -5$$  

What would the graph look like for your solution?