Mathematics, 20.12.2020 21:50 Cartucho1978

3. Evaluate each expression. (total 6 marks: half mark for showing steps, half for correct answer.) a) 7x when x=4 b) 9-2y when y=3 c) 5x+8 when x=9 e) 2r -21 when r=15 f) 3-4y when y=5 f) w+20 when w=4

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3. Evaluate each expression. (total 6 marks: half mark for showing steps, half for correct answer.)...

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