Respuesta :

6(4r+9)+9r

Distribute 6 through the parenthesis

24r+54+9r

Collect the like terms

33r+54, therefore that is your answer

Or if you want to factor out the expression do

3(2(4r+9)+3r)

Distribute 2 through the parenthesis

3(8r+18+3r)

Collect the like terms

3(11r+18), therefore that is your answer

Whichever works with you from the answer I gave you. Also brainiest please :)