If a random sample of size n = 43 is drawn, find μx, σ x and p(28 ≤ x ≤ 30). (round σx to two decimal places and the probability to four decimal places.)

Acollection of coins has value of 64 cents. there are two more nickels than dimes and three times as many pennies as dimes in this collection. how many of each kind of coin are in the collection?

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?

Kerion has a beaded necklace business. she can make 12 necklaces is 2 hours. how long will it take her to make 9 necklaces?