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Alicia puts $400 in a bank account. each year the account earns 5% simple interest. how much money will be in her bank account in six months?

How many grams the dog will eat in 3 days?

Square a has a side length of (2x-7) and square b has a side length of (-4x+18). how much bigger is the perimeter of square b than square a?and show all work! you so