Determine if the graph is symmetric about the x-axis, the y-axis, or the origin. r = 4 cos 5θ

Please give an easy to follow along detailed answer :) will mark brainliest

Flashback to semester a. are triangles pqr and stu congruent? what is the congruency that proves they are congruent? what is the perimeter of triangle pqr? show your work.

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Solve: 3x+y=6 4x-2y=18 show all work !