The length of a person hand compared with the length of the same persons foot which graph best displays the data?

Can someone me with my hwplz(only the circled ones)

Find the average speed of a rabbit that runs a distance of 22 m in a time of 1.8 s .

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 +"