Arectangle has the vertices of a(2,1), b(4,1), c (2,-2), and d (4,-2) on a coordinate plane. find the area of the rectangle.

Which equation and solution can be used to solve this problem? thirteen less than a number is sixteen. 13-n=16: add 13 to both sides. the answer is 29. n+13=16: subtract 13 from both sides. the answer is 3. n+16=13 subtract 13 from both sides. the answer is 3. n-13=16: add 13 to both sides. the answer is 29.

Solve for n? [tex]z = \frac{3}{4} mn[/tex]

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?