I just need help for 3 questions!

Write an expression for the perimeter of the triangle shown below:

A triangle is shown with side lengths labeled 2.3x plus 14, 2x, and negative 0.2x plus 15.

4.1x + 29
4.1x − 29
4.5x + 29
4.5x − 29

Which expression is equivalent to 1/5m − 20?

1/5(m − 4)
1/5(m − 100)
5(m − 4)
5(m − 100)

Write an expression that is equivalent to 3/5 (3y + 15).

three over fivey + 9
three over five y + 15
nine over fivey + 9
nine over fivey + 15