IM 7.5.6 Practice: Subtracting Rational Numbers

Write a sentence to answer the question:

How much warmer is 82 than 40?[br]

How much warmer is 82 than -40?[br]

[size=150][size=100]What is the difference in height between 30 m up a cliff and 87 m up a cliff? What is the distance between these positions?[/size][/size]

What is the difference in height between an albatross flying at 100 m above the surface of the ocean and a shark swimming 30 m below the surface?

What is the distance between an albatross flying at 100 m above the surface of the ocean and a shark swimming 30 m below the surface right below the albatross?

A company produces screens of different sizes.

Based on the table, could there be a relationship between the number of pixels and the area of the screen? If so, write an equation representing the relationship. If not, explain your reasoning.

Find each difference.

[math]\left(-5\right)-6[/math]

[math]35-\left(-8\right)[/math]

[math]\frac{2}{5}-\frac{3}{5}[/math]

[math]-4\frac{3}{8}-\left(-1\frac{1}{4}\right)[/math]

A family goes to a restaurant. When the bill comes, this is printed at the bottom of it:

Gratuity Guide For Your Convenience:[br] 15% would be $4.89[br] 18% would be $5.87[br] 20% would be $6.52[br][br]How much was the price of the meal? Explain your reasoning.

Which is a scaled copy of Polygon A? Identify a pair of corresponding sides and a pair of corresponding angles. Compare the areas of the scaled copies.