Evan budgets $1,000 a month to spend on living expenses for his family. The table expresses the portion spent on each cost as a percent, fraction, and decimal. Food: $250 Rent: $300 Transportation: $450 Fraction 1/4 3/10 9 20 Percent 25% 30% 45% Decimal 0.25 0.30 0.45 Find the sum of each row in the table. Complete the explanation for why these sums make sense. The sum of the first row is . The sum of the second row is %. The sum of the third row is . The sums make sense because in each case the three addends represent (select) of Evan's $1,000.