Last year the six grade enrollment at Main middle school was 612 students this year the enrollment is 489 students which best represents the percent change in the enrollment at Main middle school from last year

The anwser cause i do not understand just plez

Match the scale and the actual area to the area of the corresponding scale drawing. scale: 1 inch to 4 feet actual area: 128 square feet scale: 1 inch to 7 feet actual area: 147 square feet scale: 1 inch to 8 feet actual area: 256 square feet scale: 1 inch to 5 feet actual area: 225 square feet area of scale drawing scale and actual area scale drawing area: 3 square inches arrowright scale drawing area: 8 square inches arrowright scale drawing area: 4 square inches arrowright scale drawing area: 9 square inches arrowright

Which choice has the correct steps in graphing the solution set to the following inequality? -45_> 20x-5y