Find the measure of angle x in the figure below: 45° 80° 55° 100°

Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.

Set up and solve a proportion for the following application problem. if 55 pounds of grass seed cover 404 square feet, how many pounds are needed for 7272 square feet?

Tan198=asin164=? how to solve this? ?