2 3/4 - 2 1/2 answer an working

What is the simplified version of this expression: - 8 (-3n+7) - 6

A movie is three hours long. if this duration is multiplied by the conversion factor 60 how will the length of the 1 movie be expressed?

What is the percent change if 15 is increased to 21?

How would you solve 3x+9y=6

The first 5 terms of a sequence are 25, 50, 75, 100, and 125. What is the recursive formula?

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.