Which of the following is a valid reason why the quadrilateral shown below is a parallelogram?

a. one pair of opposite angles is acute and congruent.
b. both pairs of opposite sides are parallel.
c. both pairs of opposite sides are congruent.
d. one pair of opposite sides is both parallel and congruent

Four individuals pool money together to start a new business and agree to split the profits equally. n invests $6,000, x invests $2,000, y invests $8,000 and z invests $4,000. if the profits for the first month were $100,000, y receives than if the profits were divided in proportion to how much they invested.

`if you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain. ''.

Find │7│. a. 1 over 7 b. –7 c. 7 asap i always mark brailiest who me so