Pls answer all 5! Will mark brainliest!!

The estimated number of people to attend the last bengals game of the season was 2000. the actual number of fans attending was 1200. by what percent did the estimate differ from the actual?

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28

An investment decreases in value by 30% in the first year and decreases by 40% in the second year. what is the percent decrease in percentage in the investment after two years