138. A question paper contains 8 questions ,each having an alternative. The number of ways an examinee can answer three or more questions is
a) 7200
b) 6372
c) 6400
d) none of these

Fiona races bmx around a circular dirt course. if the radius of the course is 70 meters, what is the total distance fiona covers in two laps of the race? a. about 30,772 meters b. about 15,386 meters c. about 879.2 meters d. about 439.6 meters e. about 219.8 meters23 points hurry

In which form is the following function written? y = - 2(x – 3)(x + 5)

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?