A30P30 A30P30 03-04-2024 Mathematics contestada rd Questions tion Progress 3/4 Marks Harder Questions se a = 5 and b = 20 to work out the value of these expressions a) a + b b) ab c) b d) (a + b)² Y 95% a) 25 b) 100 c) 4 6 3√ 4✓