2x2
5x5
6+5+5
10000000000+2

What is the difference between regular convex and concave polygons

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

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,