50 points, :
a grid shows the positions of a subway stop at your house. the subway stop is located at (4, -2), and your house is located at (-9, -6). what is the distance, to the nearest unit, between your house and the subway stop?
a. 6
b. 9
c. 14
d. 15

Will give brainliest what is the value of x? enter your answer in the box.

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

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest