Identify properties used in each step in rewriting the polynomial expression below: (x + 5)+3(a+(6x)y)

Hunter designs two flags for his adventure club. what is the length of the base, x, of the larger flag? enter your answer, as a decimal, in the box.

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

The perimeter of a rectangular lot of land is 436 ft. this includes an easement of x feet of uniform width inside the lot on which no building can be done. if the buildable area is 122 ft by 60 ft, determine the width of the easement. select one: a. 9 feet b. 18 feet c. 4.5 feet d. 7 feet