Solve for d.

5d + 2 (2 - d) = 3 (1 + d) + 1

A. D= -3
B. No solutions
C. Infinitely many solutions
D. D= 4

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

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

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?