The area of a triangle

If the relative frequency of a train being on time is 0.4 how often could you expect the train to be on time over 20 days?

What is the circumference of a circle with a diameter of 4 feet? (use 3.14 for pi) 12 ft. 12.56 ft. 16 ft. 25.12 ft.

Truncate the decimal expansion of 6 to find the best approximation. A) 1.8 < 6 < 1.9 B) 1.80 < 6 < 1.85 C) 1.81 < 6 < 1.82 D) 1.82 < 6 < 1.83

Sara purchased a shirt on sale for $10.00. The original price of the shirt was $15.00. what was the percent of the discount sara received on her shirt

If the cross sectional area of a wire is decreased while all other factors remain the same, how would the resistance change

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.