Round 12.89503 to the hundredths

a passenger train leaves a depot 4 h after a freight train leaves the same depot. the passenger train is traveling 32 mph faster than the freight train. find the rate of each train if the passenger train overtakes the freight train in 4h

Javier worked 2.4 hours on Monday and 3.8 hours on Tuesday. His pay rate is 10.25 an hour. How much will he pay, in dollars, for the two days?

Whats the difference between 976.96 and 917.90?

It costs $4 to enter the fair. Each ride costs $2.50. You have $21.50. How many rides can you go on?

Omar's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Omar $4.85 per pound, and type B coffee costs $5.95 per pound.

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.