plz help asap
I will mark BRAINLIEST

Answer:
r8 !
Step-by-step explanation:
if you count there's eight r's. you would have to count and then mix it up with the r's. that would make it r8 or 8r!
example:
r+r+r+r+r+r+r+r+r+r+r+r
there's 12 r's, so you would put r12 or 12r !
hope this helps :)