\(3x + 1 = 10\)

\(-3 + 8n = -5\)

\(4h - 6 = 22\)

\(-8s + 1 = 33\)

\(-4w - 4 = 8\)

\(5 + \large\frac{1}{7}b = -2\)

Reason Abstractly Cristiano is saving money to buy a bike that costs $189. He has saved $99 so far. He plans on saving $10 each week. In how many weeks will he have enough money to buy the bike? Use a bar diagram to solve arithmetically. Then use an equation to solve algebraically.

\(2r - 3.1 = 1.7\)

\(4t + 3.5 = 12.5\)

\(8m - 5.5 = 10.1\)

Temperature is usually measured on the Fahrenheit scale (°F) or the Celsius scale (°C). Use the formula F = 1.8°C + 32 to convert from one scale to the other.
a. Convert the temperature for Alaska’s record low in July to Celsius. Round to the nearest degree.

b. Hawaii’s record low temperature is -11°C. Find the difference in degrees Fahrenheit between Hawaii’s record low temperature and the record low temperature for Alaska in January.