Simplify 81?

18

9

40.5

-18

Simplify 50?

10

5/2

25/2

50 (it can't be simplified anymore)

How to count the number of nodes in a binary tree

Q/18 = 5. i need to solve for q

Solve. 4 What are the slope and the y-intercept of the equation y = 0.5x + 3?

The area of a triangle may be found by multiplying the height by one-half of the base. the area of a triangle is 21 square inches. if its base is 7 inches, find the height in inches.

An ordinary deck of 52 cards is shuffled. What is the probability that the top four cards have different denominations?

Some bakers make apple pies. They each have 15 boxes of apple pies

Kim is planning a trip to Spain. She will stay there for a total of thirteen nights. She has found two options for her lodging: a hostel, which charges €12.65 (12.65 euros) per night, and a private hotel, which charges €31.25 per night.

Value of 7 in 11.776

Question? Jared and David both sell air conditioning units, but they work for two different companies. Each month, Jared earns a base pay of $1,001 plus an extra $75.55 for each unit he sells.

Translate into an algebraic expressions: A number increased by 100% and decreased by 20% is x. What is the number?