The following table shows the length and width of two rectangles:
length width
rectangle a 2x + 4 x − 1
rectangle b 3x + 1 2x − 3
which expression is the result of the perimeter of rectangle b minus the perimeter of rectangle a?

What is the missing constant term in the perfect square that starts with x^2 -20x

The probability that a college student belongs to a health club is 0.3. the probability that a college student lives off-campus is 0.4. the probability that a college student belongs to a health club and lives off-campus is 0.12. find the probability that a college student belongs to a health club or lives off-campus. tip: p(a or b) = p(a) + p(b) - p(a and b) 0.54 0.58 0.70 0.82

Find the area of the unshaded square