One half the sun of a number z and 3 1/2 is 4 1:2

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 the correlation coefficient between the variables? round to three decimal places. enter your answer in the box

What is the length and width of a 84.5 square foot rug? will mark