If a fair die is rolled twice and two numbers. X1=result of the first roll and X2=result of the second roll are obtained. Given that X1+X2=7,what is the probability that X1=4 or X2=4​

Someone answer this asap for the length, in feet, of a rectangular rug is represented by the expression 5x² + 2x. the width, in feet, is represented by the expression 3x². which expression represents the perimeter, in feet, of the rug? a. 8x² + 2x b. 8x² + 4x c. 16x² + 2x d. 16x² + 4x