The results of randomly drawing a card from a standard deck of 52-playing cards are as follows: 12 hearts, 21 clubs, 14 spades, and 11 diamonds. What is the experimental probability of drawing a heart?

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

Simplify the expression 10/11(22z) + (a+5) -1

Hurrya vegetable garden and a surrounding path are shaped like a square that together are 11ft wide. the path is 2ft wide if one bag of gravel covers 9 square feet how many bags are needed to cover the path