Answer:
The answer 150%
Explanation:
This is a math Question... so it really shouldn't be in the English section but anyway:
The original price needs to be multiplied by a factor in order to increase to $450. We can solve for that factor with the equation:
300x = 450.
Solving for x gives us 1.5 which is 150%
Answer: fifty percent
Explanation: if the bike was originally three hundred dollars, and its price increases by fifty percent (which would be half the price or one hundred fifty dollars) the total at the end would be 450, since three hundred plus one hundred fifty is four hundred fifty.
Hope this helps.
