A glacier that was 1,076 meters thick changed in thickness at an average rate of -22.7 meters per year for 7 years.
a)Write an addition expression you can use to find the glacier's thickness after 7 years.
b)Evaluate your expression.
Thank you for your help.
1,076 (the original thickness) - 22.7 meters (loss per year) * 7 (lost 22.7 meters per year for seven years, so multiply the loss per year by the amount of years) = 917.1 (the size after 7 years)
