1. $210.00 increased by 40% is what percent of $210.00? 2. how much money is a $210.00 increased by 40%?

In the rectangle below ac=30 units what is de

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

What is always true about a positive integer raised to a negative odd power?