Can any one explain me this? Joe says that 5(2x-3)-4(x-6)=10x-15-4x-24=6x-39 .
Explain why he is wrong.
plz explain me this quickly

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

Quadrilateral abcd is translated up and to the right, and then rotated about point q. which congruency statement is correct?

Which are the possible side lengths of a triangle?