aryonnamiller2026 aryonnamiller2026 30-10-2020 Mathematics contestada What is the sum of (–2.1x + 3.7) and (5 + 4.9x)?A.) -7.0x + 8.7B.) -2.8x + 8.7C.) 2.8x + 8.7D.) 7.0x + 8.7