What is a good estimate for 470% of 40?

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Ajar of gumballs contains 4 reds, 2 greens, and 6 blues. what is the probability of getting two blues in a row without replacement?

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out

An investment decreases in value by 30% in the first year and decreases by 40% in the second year. what is the percent decrease in percentage in the investment after two years