What is the value a in this

2a-54=a

What is 30 over 54 in simplest form

Melinda spend $14.25 on school supplies Dr spend $2.30 more than Melinda

What is the value of the 5 in the number 14.5?

5,345,238. How are the two 3 related

A cyclist travels 2/3 of his journey to an average speed of 12 mph he takes the remaining 30 miles of his journey in three hours how long does his trip take

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.