英文數學題- Using Algebra to Solve Problems

Answer the following questions in algebraic expressions.
(a) A dozen eggs cost $2y. How much does an egg cost?
(b) Multiply x by 3 , minus the product by 5 .
(c) The length of a rectangle is x cm . Its width is 2 cm less than its length. Find the area of the rectangle.
(d) The bases of a trapezium are 3 cm and 5 cm and its height is x cm . What is the area of the trapezium?

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呢幾條題來自Train Up MATHEMATICS 1 (S.1-S.2) 的第一課