Given the expression 5a2b − 13ab 7a3 − 4b, do the following as instructed below: a: write the polynomial in descending order. b: classify the polynomial by the number of terms. c: state the degree of the polynomial

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?