I wanna say it’s d because of the way it’s set up, i hope this helps if not i’m really really sorry
Let x be the unknown number
x×55%=121
x=121÷55%
x=220
So 121 is 55% of 220
Answer:
140 + 10 = 150, so 150 + 140 = 290 students. There are 140 + 10 = 150 students at Westside Middle School.
Step-by-step explanation: