Marcus works for a radio station. During his one hour radio show, he must play 12 commercials for a total of 10 minutes. Each
commercial is either 30 seconds or 60 seconds long.

Which expression will have the same sum as 3_8 + 1/4?

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?

Finally, the arena decides to offer advertising space on the jerseys of the arena's own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14 what is this as a percentage? what is this as a fraction? what is the probability of not being shortlisted? give your answer as a decimal.