Solve the inequality. -8c - 9 < -17

Given a circle with a radius of 4, which is the circumference

When a rectangle is dilated, how do the perimeter and area of the rectangle change?

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