There are 16 vegetable plants because 40/5 is 8 and 2 times 8 is 16. 5:2=40:16
C is the answer to this question
Given a regular 20-gon ( a 20 sided polygon )
The measure of each interior angle will be given by:

where n is the number of sides
Substitute with n = 20
So, the measure of each interior angle =

The sum of exterior angles = 360
So, the measure of each exterior angle = 360/20 = 18
80/2= 40
46-34= 12
So Pamela is 34 & Jiri is 46