William collects rocks. His frend him more rocks. Now he has 22 rocks. Create an equation to represent the total number of rocks, r that William has before his friend gives him 3 more rocks Enter equation in the response box Enter the number of rocks represented by in this situation Enter your answer in the second response box. Imagine there’s two boxes

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

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

Thee blue triangle has rotated from quadrant i to quadrant iii about the origin. describe the effects of the rotation on the coordinates of the blue triangle.