How do I explain to a kid what volume mean?

Betsy bought six bags of rice weighing 30 lbs. total. Which ratio represents the number of bags to lbs?

5/14 1//16 write in simplest form

A number that multiplies a variable in a term is a _-

How do you find x? 1/5x + 5 = 19 - 1/2x

An athlete runs 1 mile along a normal 400m athletic track and finishes exactly on the finish line. Where did he start from? (1 mile=1.609km)

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.