A rectangle with a width of x + 2 and a length of 8, has the same perimeter as a square with a side of r- 1.
Find the perimeter of the rectangle.
Perimeter of rectangle: P= 22 +2W; Perimeter of square: P= 4s
[Set up equation first » solve for r » find dimensions » find perimeters]

The probability of drawing a heart from a standard deck of cards is .25. you record the card you draw and return the card before shuffling to ensure a binomial distribution. if you do this 20 times what is the probability that you will draw a heart 7 times? a. 0.888 b. 0.001 c. 0.112 d. 0.473