Can anybody help me with at least one question thank you I would really appreciate it !!

£100.80 divided by 14 equals 7.2 how would we put this as money

Which of the following questions describes the equation g + (-4) = -5? a)what number, when added to negative four, is equal to negative five? b)what number, when added to negative five, is equal to negative four? c)what number, when subtracted from negative four, is equal to negative five? d)what number, when subtracted from negative five, is equal to negative four?

What is the frequency of the sinusoidal graph?