Write an expression for the area of the tennis court. Note: simplify your answer and write it in standard form.
(Please hurry!!)

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

Plz ( true - false) all triangles have interior angles whose measure sum to 90.

Which of the following graphs could represent a quartic function?