At the beginning of the summer, the water level of a pond is 2 feet below its normal level. after an unusually dry summer, the water level of the pond dropped another 1 1/3 feet. write an equation to show how far above or below the normal water level the pond is at the end of the summer.

Step-by-step explanation:

Since, after decreasing the water level by 2 feet,

Changes in water level = -2 feet,

Again after decreasing the water level by feet,

Changes in water level = feet,

Thus, the total change in water level =

Which is the required expression.

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.