Please solve quickly, will give branliest Given five vertices, how many different graphs can be made?

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.

Consider circle o, where and . m∠bpd °. °.