75 + ( - 50 ) + 250 + (- 150) + 50 = 175 ft A. What three numbers in the equation represent in an increase in elevation? B. Use the same sign to add these three integers together. C. What two numbers in the equation represent a decrease in elevation? D. Use the sign to add these two integers together. E. Add the resulting integers to determine the sum of the equation that describes the hikes in engage in elevation.​