Which of the following is always a true statement total employee benefits

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 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

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c