The lowest temperature ever recorded on Earth was $-89.2\degree\text{C}$ −89.2°C at Soviet Vostok Station in Antarctica. The highest temperature ever recorded was $56.7\degree\text{C}$ 56.7°C at Greenland Ranch in California. What is the difference between the highest and lowest recorded temperatures?

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?

What is perpendicular to y=-1/2x+11

Acable company claims that the average household pays $78 a month for a basic cable plan, but it could differ by as much as $20. write an absolute value inequality to determine the range of basic cable plan costs with this cable company. a. |x − 78| ≥ 20 b. |x − 20| ≥ 78 c. |x − 20| ≤ 78 d. |x − 78| ≤ 20