81,85,89 are the missing numbers
Answer:

Step-by-step explanation:
Using the change of base rule for logarithms
x =
( where c is the new base )
Given
log 17 , that is
17 , then
17 = 
2:3
6 ÷ 2 = $3 (cost of 1 pack of butter cookies)
3 x 3 = 9 (cost of 3 packs of butter cookies)
17 - 9 = 8 (cost of 4 packs of chocolate cookies)
8 ÷ 4 = 2 (cost of one pack of chocolate cookies)
Answer:
The 2nd one/Green
Step-by-step explanation:
A plane figure with five straight sides and five angles.