How do you solve an algebraic expression

The art museum will hang 3 famous paintings in a row. How many different ways could the paintings be hung?

The first term in a geometric sequence is 1/9 and the common ratio is - 3. Find the 7th term in the sequence.

Darrel is currently 20 feet below sea level which correctly describes the opposite of Darrel elevation

0.17838405 rounded to the nearest thousandths

Do I just do 10x3x2 which will equal 60cm3 Work out the volume of a cuboid 10cm by 3cm by 2cm

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.