cuántos metros de cinta amarilla se deben colocar para cercar la orilla de un terreno cuadrado de 169m2, donde acaban de poner un piso de concreto?​

The sum of two numbers is 86, and their difference is 20. find the two numbers

Question: a) does the given set of points represent a linear function? how do you know? b) assume that the point (-2,4) lies on the graph of a line. what y-values could complete this set of ordered pairs that lie on the same line: (- (hint: there are several correct answ

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?