What is 582 rounded to the nearest ten

According to a survey, high school girls average 100 text messages daily (The Boston Globe, April 21, 2010). Assume the population standard deviation is 20 text messages. Suppose a random sample of 50 high school girls is taken. a.

If I drove 509 miles and stopped at the store and drove 4/5 of a mile, stopped at the mall and drove 125 more miles, how many miles did I drove?

How to write 281,480,100 in word form

What power must you raise the expression 7 1/2 to get 7

G (n) = n² - 40 f (n) = 2n - 5 Find (gºf) (4) A=3 B=59 C=-5 D=45 E=117

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.