During a certain 7-year period the consumer price index increased by 60% but during the next 7-year period, it increased by only 50% . which of these conditions must have existed during the second 7-year period?

a. deflation

b. conflation

c. stagnation

d. inflation

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.

:)i need to know on which ones are corresponding, alternate interior, alternate exterior, or none of these.

The ordered pair (2,-5.2) is located in quadrant iv