Work shown above! Answer would be 110 degrees!
Answer:
1140
Step-by-step explanation:
A decagon has 10 sides so substitute it like this:
(n-2) x 180
(10-2) x 180
8 x 180= 1140
Answer:
5 × a + b
Step-by-step explanation:
Product = Multiply
Sum = Addition
5 times a
5 × a + b
Hope this helps! <3
