Bella uses her phone primarily to take a lot of selfies. The storage space on her phone is limited, so Bella needs to keep track of how many selfies she takes. There is a proportional relationship between the number of selfies Bella takes, x, and the amount of storage (in megabytes) she uses taking selfies, y. The equation that models this relationship is y=2x. How much storage does Bella use when she takes 8 selfies? Write your answer as a whole number or decimal. megabytes