The nextnumberin the series is -85.To determine the pattern in the series, we observe that each number is obtained bysubtractinga decreasing sequence of numbers from the previous number.298 - 89 = 209209 - 80 = 129129 - 71 = 5858 - 62 = -4The sequence of subtracted numbers is decreasing by 9 each time. So, we continue thispatternand subtract 53 from -4 to obtain the next number:-4 - 53 = -57Thus, the next number in the series is -85.For more questions likeNumberclick the link below:brainly.com/question/17429689#SPJ11...

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