Determine whether each quadrilateral is a parallelogram. Write yes or no. If yes, give a reason for your answer. ​

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

The holiday party will cost $160 if 8 people attend. if there are 40 people who attend the party, how much will the holiday party cost

Yahir designs bracelets. he uses between 9 and 15 red and yellow beads in the ratio of 2 red bead to 5 yellow beads. drag the beads into the container to meet these requirements