Click the correct answer.
What is the sum of $$\left (3pq \right )$$, $$\left (2pq \right )$$ and $$\left (-13pq \right )$$?
$$-6pq$$
$$8pq$$
$$6pq$$
$$-8pq$$
What is the simplified form of $$\left (-17xy + 3xy - 12xy \right )$$?
$$-24xy$$
$$-26xy$$
$$24xy$$
$$26xy$$
What is the simplified form of $$\left (2xyz + 3yzx - 5zxy \right )$$?
$$10xyz$$
$$-10xyz$$
$$0$$
$$10$$
What is the sum of $$[3xy + (-35xy)]$$ and $$[12x^{2}y - 7x^{2}y]$$?
$$6x^{2}y - 32xy$$
$$5x^{2}y - 32xy$$
$$5x^{2}y - 38xy$$
$$6x^{2}y - 38xy$$
What is the value of $$\left (-5xy \right ) \times \left (-3px^{2} \right )$$?
$$15px^{2}y$$
$$15x^{3}y$$
$$15px^{3}y$$
$$15pxy$$
What is the value of $$\left (\frac{7}{5}xy \times \frac{25}{49}y^{3} \right )$$?
$$\frac{5}{7}xy^{4}$$
$$\frac{7}{5}xy^{4}$$
$$\frac{3}{7}xy^{4}$$
$$\frac{7}{3}xy^{4}$$
What is the sum of $$\left (\frac{7}{13}x^{2}y \right )$$, $$\left (2x^{2}y \right )$$ and $$\left (-mn \right)$$?
$$\frac{33}{13}x^{2}y + mn$$
$$\frac{13}{33}x^{2}y - mn$$
$$\frac{33}{13}x^{2}y-mn$$
$$\frac{13}{33}x^{2}y + mn$$
