Convert 4+13/20 to decimal

What is the additive of the expression a-b

Jayda is running around a track where 3 laps is 5km. She runs 6 laps in 20 min. What is her speed in min per km

The quotient of five times a number and 7 is no more than 10

The surface areas of two similar solids are 200 m² and 1152 m². The volume of the larger one is 1728 m³. What is the volume of the smaller one?

Use the log table to estimate the value of log10 8.65.

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.