On the day a certain celebrity proposes marriage, 8 people know about it. Each day afterward, the number of people who know grows by 50%.Which expression gives the number of people who know about the proposal after 4 days?Choose 1 answer:8(1+0.5)(1+0.5)(1+0.5)(1+0.5)8+ (1+0.5)(1+0.5)(1+0.5)(1+0.5)8 0.5 0.5 0.58+0.5 0.5-0.5