Answer:
600£
Step-by-step explanation:
brainliest?
We can write a proportion. We know that $420 is 70% of an unknown original price. Let's call it x. We write equal ratios of comparing percent and comparing the $420 to the original price. We then set them equal.
We then cross multiply across the equal sign from numerator to the opposite numerator.
70(x)=420(100)
70x=42000
We divide to find x.
x=600.