Let x be the unknown number
x×55%=121
x=121÷55%
x=220
So 121 is 55% of 220
Well, I can't see the choices, but to estimate that, I would round 0.48 up to 0.5, and round 591 down to 590. Then you can just half 590, which results in 295. Hope this helps!
Answer:
?=7
Step-by-step explanation:
When you divide, you just subtract the exponents. so 5^11/5^?=5^4 ?=7
