A 7 foot long snake is crawling along the corner of a room. It is moving at a constant 2/3 foot per second while staying tucked snugly against the corner of the room. At the moment the snake’s head is 4 feet from the corner of the room, how fast is the distance between the head and the tail changing?

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

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

Af jewelry box is in the shape of a rectangular prism with an area of 528 cube inches. the length of the box is 12 inches and the height is 5 1/2 inches. what is the width of the jewelry box