What does DYV (dive) stand for on ISTEP + Math Part 1?

The number of permutations of n distinct objects is:

The most important thing that I need to remember is ... *You must write in complete sentences. if anyone know's how to do quadratics i need 1 sentence whats important doing quadratics.

A typical marathon is 26.2 miles Aleexis averages 12 km per 1 hour when running in marathons. Use dimensional Analysis to determine how long it would take Aleexis to complete a marathon

On Thursday you ran to a playground 2 1/4 mi. from your house. It took you 19 min. to run there and 20 minutes to run back home. On Friday you ran the entire4 1/2 mile at a constant speed of 6 1/4 mi/h.

According to a University of Florida wildlife ecology and conservation researcher, the average level of mercury uptake in wading birds in the Everglades is declining (UF News, December 15, 2000). Last year, the average level was 15 parts per million.

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.