A television antenna sits atop a building. From a point 200 feet from the base of the building, the measurement of the angle of elevation of the top of the antenna is 80°. The measurement of the angle of elevation to the bottom of the
antenna from the same point is 75°. How tall is the antenna?

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

Aschool allots ? 1500 to spend on a trip to the theatre. theatre tickets have a regular cost of ? 55 each and are on offer for 1 5 off. a train ticket for the day will cost ? 12 each. if 2 teachers and the maximum number of students attend, how much money will the school have left over?

Mrs. avila is buying a wallpaper border to go on all of her kitchen walls. she wants to buy 5 extra feet of wallpaper border than she needs to be sure she has enough. she buys 55.5 feet of the border. the store owner selling the border uses the width of mrs. avila's kitchen to determine that the length of her kitchen must be 14.5 feet.