Simplify this expression

10x - 5y + 2x - 3y

What are some advantages of writing the polynomial expression - 7x2 + 32x + 240 in factored form when interpreting this situation?

A Web music store offers two versions of a popular song. The size of the standard version is 2.8 megabytes (MB). The size of the high-quality version is 4.7 MB.

How many dimensions exists in the universe? A) 3 B) 5 C) 11 D) 10

What is the volume of a 575 gram bar of pure gold

A pitcher contains 11.25 cups of iced tea. You drink 1.5 cups of the tea each morning and 0.42 cup of the tea each evening. When will you ran out of iced tea?

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.