Helen had $330 in her savings account when Vince opened a savings account with zero dollars. • Helen deposited $30 into her account each week for x weeks. • Vince deposited $50 into his account each week for x weeks. • The accounts did not earn interest. Which inequality represents this situation when the amount of money in Helen’s account was greater than the amount of money in Vince’s account?

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The blue whale is the largest animal living on the earth. the average blue whale measures 100 feet long (30 meters) and weighs 300,000 pounds (136,000 kilograms). a whale’s head is 1⁄3 of the length of its body. a new baby whale is 1⁄4 the length of a grown whale. the average man is 1⁄17 the length of a blue whale, and 1⁄1,818 its weight. a human baby measures 1⁄4 of the length of an adult. calculate the following information: how long is a whale’s head? how long is a new baby whale? how tall is the average man? how much does the average man weigh? how tall is the average human baby?

Which recursive formula can be used to determine the total amount of money earned in any year based on the amount earned in the previous year? f(n+1)=f(n)+5