Can u me? i need with both of them.

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 +"

Marking brainliest for original answer.. are these two triangles similar? how can you tell?

What is the measure of angle a and angle c ?