What does this symbol mean? "∩" and this symbol "∈" and how do you use them?

A triangular paddock has a road AB forming its hypotenuse. AB is 3 km long. The fences AC and CB are at right angles. If BC is 400 m longer than AC, find the area of the paddock in hectares.

Heather wrote this solution to solve for x. Which statement is true?

1. Which expression is equivalent to 8-3? H 1 + 5 B 3-8 C 8-5

Raphael went to the store and bought 2 1/2 pounds of chicken breasts for $9.00 what was the cost per pound of chicken breasts? Round your answer to the nearest cent

Write 14/35 in simplest form

B) Order these measurements from greatest to least. Explain how you decided. 2,300 L 500 ml 3,000 mL 2 L 22 L

A bag contains 10 quarters and 5 nickels. Determine whether the events of picking a nickel first and then a quarter without replacement are independent or dependent. Then identify the indicated probability.

Which of these colonial American ideas came from the English Bill of Rights? 1. All citizens have basic rights. 2. Citizens can govern themselves 3. Government should have limited power 4. The press must be free

It takes a word processor 45 minutes to word process and spell check 6 pages. Find how long it takes her to word process and spell check 22 pages.

Is 1/2 greater or less then 3/10?