Answer:
7a - 2
Step-by-step explanation:
A perimeter is just the sum of all sides added together, so just put all the expressions together into a big equation.
2a - 3 + 2a + 3a + 1
Combine like terms
7a - 2
If I’m correct negative one half
Hey there!
Your probability of you receiving a red colored marble would 3/9.
Have a nice day fam ;)
