Convert to decimal notation. \

$$8.375 \%$$

Solve and check. \

$$-7 x-24=-129$$

Solve.
The total attendance at NCAA basketball games for the $2009-2010$ school year was $33$ million. This was $31.25 \%$ less than the total attendance at NCAA football games during that year. What was the total attendance at NCAA football games during the $2009-2010$ school year?

Solve each formula for the indicated letter.
$E=m c^2$, for $c^2$ (A relativity formula from physics)

Solve. Label any contradictions or identities. \

$$3(x-4)+2=x+2(x-5)$$

Solve. Even though you might find the answer quickly in another way, use the five-step process in order to build the skill of problem solving.
In $2010$, approximately $294$ billion e-mail messages were sent each day. The number of spam messages was about nine times the number of nonspam messages. How many of each type of message were sent each day in $2010$?

Graph on the number line. \

$$-2 \leq x \leq 2$$

Solve. Write the answer in both set-builder notation and interval notation. \

$$4(2 n-3) \leq 2(5 n-8)$$

Convert to decimal notation. \

$$6.25 \%$$

Use an inequality and the five-step process to solve each problem.
RJ's Plumbing and Heating charges $\$ 55$ plus $\$ 40$ per hour for emergency service. Gary remembers being billed over $\$ 150$ for an emergency call. How long was RJ's there?

Graph on the number line. \

$$-5 \leq x<2$$

Solve. Don't forget to check! \

$$x-18=23$$

Solve and check. \

$$-6 z-18=-132$$

Solve. Even though you might find the answer quickly in another way, use the five-step process in order to build the skill of problem solving.
The world's oldest bride was $19$ years older than her groom. Together, their ages totaled $185$ years. How old were the bride and the groom?