14. rewrite the following definition as a biconditional:

points that lie on the same line are collinear.

if a point lies on a line, then it is collinear.
if a point lies on a line with another point, then the two points are collinear.
if two points are collinear, then they lie on the same line.
points lie on the same line if and only if the points are collinear.

Someone answer this asap for gabriella uses the current exchange rate to write the function, h(x), where x is the number of u.s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a. gabriella averages 7.5 u.s. dollars for every 100 euros. b. gabriella averages 100 u.s. dollars for every 25 euros. c. gabriella can exchange 75 u.s. dollars for 100 euros. d. gabriella can exchange 100 u.s. dollars for 75 euros.