Answer:
18n+9 i think
Step-by-step explanation:
57+28x
only this
i don't know you 4x2 or 4x+2
1/5 + 1/5 + 1/5 + 1/5 = 4/5
♀️♀️♀️♀️♀️♀️♀️♀️
x<=12 that is a greater than or equal to sign btw