Heather is building a model volcano for the science fair. To find the right ratio, she starts by mixing small amounts of baking soda and vinegar. She finds that adding 1.5 teaspoons of baking soda for every fluid ounce of vinegar produces the best eruption. If Heather plans to use 0.5 cups of vinegar for her project, how many tablespoons of baking soda should she use? Hint: There are 3 teaspoons in 1 tablespoon. There are 8 fluid ounces in 1 cup. Write your answer as a whole number, decimal, or simplified fraction. Do not round.

1) During the biggest drop of the Mean Streak roller coaster in Ohio, your alitude changes by - 155 feet. The Teras Giant in Texas has a -137 f . change. Which expression can you use to solve this problem: \( -155-(-137) \) or \( -237-(-155) \) ? How much farther do you drop on the Mean Streak?

2) The highest temperature ever recorded in the United States was \( 134^{\circ} \mathrm{F} \), measured in Death Valley, CA. The coldest temperature, \( -80^{\circ} \mathrm{F} \), was recorded in Prospect Creek, Alaska. What is the difference between these temperatures?

\( 30 \% \) of \( 40= \)

Write \( 2 \frac{4}{7} \) as an improper fraction.

Use the order of operations to simplify this expression \( \left(\frac{1}{3}+\frac{5}{12}\right) \cdot \frac{1}{2} \) Question Help: D Post to forum Submit Question