zaza453 zaza453 04-01-2021 Mathematics contestada 1. Jessica starts at an elevation of 40 feet and descends 60 feet. Use the number line to find Jessica's current elevation. Then complete the equation. -80-70-60-50-40-30-20-10 0 10 20 30 40 50 60 70 80 90 100 110 120 --- 40 + (-60) =