What does the symbol | mean in A | B

674 (3+4) 2 - (21:3 + 4.2) | 14-3.1 + 23 - (5+1) * 2

A 25 foot ladder rests against a buliding. The base lf the ladder is 15 feet away from the base of the building. At what height does the ladder rest on the building (geometry, pythagorean theorem)

What is 869 times 38

What does 2xy (2x - 3y) equal

Mary sells lemonade, and she donates 10 cents from every cup she sells to charity. The cups of lemonade sell for 45 cents. One day she made $17.10. How much money did she give to charity that day?

Factor completely: r2-11r+18 A.) (r-6) (r-3) B.) (r+6) (r+3) C.) (r-9) (r-2) D.) (r+9) (r+2)

A freezer was sold during a clearance sale for $387.50. If the freezer was sold at a discount of 16 and two thirds % , what was the list price?

Whats 40a-8 factorize

Nathan does push ups for the same amount everyday. He does 9 minutes of push ups for 3 days. How many minutes of push ups does Nathan do in 7 days?

Is Markiplier the best man?