in quadrilateral abcd, diagonals ac and bd bisect one another:

what statement is used to prove that quadrilateral abcd is a parallelogram?

a.) angles bad and adc are congruent
b.) corresponding angles bcd and cda are supplementary
c.) sides cd and da are congruent
d.) triangles bpa and dpc are congruent

Desmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? \ 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2x