1. Pay raise: You receive a raise in your hourly pay from $7.25 per hour to $7.50 per hour. What percent increase in pay does this represent? 2. Heart disease: In a certain county, the number of...

1. Pay raise: You receive a raise in your hourly pay from $7.25 per hour to $7.50 per hour. What percent increase in pay does this represent?

2. Heart disease: In a certain county, the number of deaths due to heart disease decreased from 235 in one year to 221 in the next year. What percent decrease in deaths due to heart disease does this represent?