Which equation best represents the following mathematical sentence? One less than one-fourth the square of x is y.
O 1-1 v = y
O V-1 = y
O 1- x2 = y
O x2 - 1 = y

Sally deposited money into a savings account paying 4% simple interest per year.the first year,she earn $75 in interest.how much interest will she earn during the following year?