One day a store sold 21 sweatshirts. White ones cost $11.95 and yellow ones cost $11.50. In all, $245.55 worth of sweatshirts were sold. How many of each color were sold?

Math each whole number with a rational, exponential expression

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.

During the election for class president, 40% of the students voted for kellen, and 60% of the students voted for robbie. 500 students voted in total. how many more students voted for robbie than for kellen? answer with work : )