Which probability indicates that an event is not likely to occur?

Consider circle h with a 3 centimeter radius. if the length of minor arc what is the measure of zrst?

Plz hurry evaluate the expression a+b where a=8 and b=19

Given that y varies directly to the square root of (x + 1), and that y = 1 when x = 8,(a)express y in terms of .x,(b)find the value of y when x = 3,(c)find the value of x when y = 5.