Which term in this expression is a constant?

6a + a + 3b + 18

7+ 2[(5^2)*152%]= answer as soon as you can

Aboard game uses a fair six-sided die and a spinner with five equal-sized sections colored dark blue, green, light blue, red, and yellow. players roll the die and then spin the spinner. match each probability statement to its correct value.

This is about circle theorems. someone asap : (