Which of the equations are true identities? A. n(n-2)(n+2) = n^3-4n B. (x+1)^2-2x+y^2=x^2+y^2+1

Atriangle has an area of 72 square inches. if the base of the triangle has a length of 18 inches, what is the height of the triangle? use the formula for the area of a triangle: area = (base)(height) type a numerical answer in the space provided. do not include the units or spaces in your answer.

Fred has a spinner that is split into four equal sections: red, blue, green, and yellow. fred spun the spinner 688 times. which of the following would be a good estimate of the number of times the spinner lands on the green section? a. 269 b. 603 c. 344 d. 189

Which expression and diagram represent “renee biked four times as far this month as last month”?