Walter buys a bus pass for $30. Every time he rides the bus, money is deducted from the value of the pass. He rode 12 times and $24 was deducted from the value of the pass. How much does each bus ride cost?

Analyze Relationships Elisa withdrew $20 at a time from her bank account and withdrew a total of $140. Francis withdrew $45 at a time from his bank account and withdrew a total of $270. Who made the greater number of withdrawals? Justify your answer.

Multistep At 7 p.m. last night, the temperature was 10 °F. At 7 a.m. the next morning, the temperature was -2 °F.
a. By how much did the temperature change from 7 p.m. to 7 a.m.?

b. The temperature changed by a steady amount overnight. By how much did it change each hour?

Analyze Relationships Nola hiked down a trail at a steady rate for 10 minutes. Her change in elevation was -200 feet. Then she continued to hike down for another 20 minutes at a different rate. Her change in elevation for this part of the hike was -300 feet. During which portion of the hike did she walk down at a faster rate? Explain your reasoning.

Write a real world description to fit the expression -50 ÷ 5.