Simplify this (2x - 9) (4x + 1)

Which of the following expressions are equivalent to - 3.5 (2 - 3n) - 2.5n?

A radio tower is located 300 feet from a building. From a window in the building, a person determines that the angle of the elevation to the top of the tower is 34 degrees and the angle of depression to the bottom is 24 degrees.

Which expression represents the phrase "twice the difference of a number and 5"? 2 (1+5) -5 + 2.1 2+2 (1-5) 2 (1 - 5)

Convert 234 degrees to radians

8 cupcakes cost $4.64, what is the unit rate?

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.