Can anyone tell me the answer and calculations for #2

If t the possibilities  the  to win are 1/16,.then the possibilities   to lose are 15/16

16/16-1/16=15/16

so  every 15 of the  16  times they will raise 25 cents which is almost 100% of the times

 Every15 of 16 times they will raise $15.But also they need to give away$5 price

so $10 every 15/16 

center= (-2,0)

radius= sqrt2/2

step-by-step explanation:

true

step-by-step explanation:

intersecting chords are just lines that intersect. so a line is equal to 180 degrees, so when it is intersected by another chord, then it create supplementary angles, and because the lines cross, vertical angels are also formed.