fond the discount and markup for each, then find the selling price. Round to the nearsst cent when necessary

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

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

For what value of (y) is 3^3/3^y =1/9