Answer:
540°
Step-by-step explanation:
Formula: note that n means nr of sides
(n-2)×180°
(5-2)×180°=3×180=540°
Where each angle are 540°÷5=108°
Collect like terms and calculate the sum
85
you will do they 20 carrots times the 4 boxes which is 80 then add the 5 her dad gave her which gives you 85
