Lines t and s (picture attached)

which of the following pair of angles are vertical?

a. 3 and 4

b. 1 and 3

c. 3 and 2

d. 4 and 1

11. a particular type of cell doubles in number every hour. which function can be used to find the number of cells present at the end of h hours if there are initially 4 of these cells? a. n = 4 ()" b. n = 4(2)" c. n = 4 + (2)" din = 4 +"

Math i have no idea how to do a and b

Quick graph the line for y+2=32(x+4) on the coordinate plane. does anyone know the cordinates will mark brainliest.