<p>This is probably a really easy problem, but I honestly dont know how to get the answer. I feel really bad because I am in AP Cal AB and I can't do this Alegbra problem.</p>

<p>To increase the mean of 4 numbers by 2, by how much would the sum of the 4 numbers have to increase?</p>

<p>F. 2

G. 4

H. 6

J. 8</p>

<p>The answer is J, but I dont know what work has to be done to solve the problem. Please Help Me!!!! :)</p>

<p>I need help with this problem as well.</p>

<p>Meg pounded a stake into the ground. When she attached a leash to both the stake and her dog's collar, the dog could reach 9 feet from the stake in any direction. Using 3.14 for pi, what is the approximate area of the lawn, in square feet, the dog could reach from the stake?</p>

<p>The answer is 254.</p>