12. The equation y = 12x + 15 can be used to find the cost of having photos taken. Select all of the ordered pairs that correspond to input-output pairs for the function.
A. (10, 130)
B. (15, 195)
I
C. (50, 600)
D. (2, 39)

Asequence {an} is defined recursively, with a1 = 1, a2 = 2 and, for n > 2, an = an-1 an-2 . find the term a241. a) 0 b) 1 c) 2 d) 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

Fast! find the length of cu. the triangles are similar. show your work.