hhfyh6yyvk hhfyh6yyvk 10-11-2022 Mathematics contestada Equivalent expression to 1/4a + (-6) - 3/4a +2.8. Options a.-1/2a + 3.2 b.-1/2a -3.2 c.3/4a + 8.8 d.3/4a -8.8