def apply_sum(x, y):
    return f"{x + y:.2f}"


def apply_subtract(x, y):
    return f"{x - y:.2f}"


def apply_divide(x, y):
    return f"{x / y:.2f}"


def apply_multiply(x, y):
    return f"{x * y:.2f}"


def apply_power(x, y):
    return f"{x ** y:.2f}"
