moeplayz moeplayz 21-11-2018 Mathematics contestada determine if each expression is equivalent to -2.7 + (-4.9) a -2.7 - 4.9 b -2.7 + (-0.4 - 4.5) c -2.7 + 0.4 - 4.5 d -2.7 + (-0.7 + (4.2) e -2.7 - 0.7 + 4.2