Question:

Lindy paid $p for a plate which cost p cents. How much change did she receive? Give your answers in

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- cents,
- dollars.

Hillary bought 12 buns and 15 doughnuts altogether. One bun is y ¢ and one doughnut is $2. She gave the cashier $50. Express her change in terms of y in cents.

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Ann brought $z to the supermarket. She bought 2 watermelons at $2.50 each. How much money had she left? Give your answer in cents.

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Benny swam for 3 days. On each day, he would do 2 more laps than the previous day. He did y number of laps on the first day. What was the total number of laps he did for the 3 days? Give your answer in terms of y.

2 m
A rope w cm long is cut into two pieces. One piece is 5 cm longer than the other. What is the length of the longer piece? Give your answer in terms of w.

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Box X is half as heavy as Box Y. Box Z is 3 times as heavy as Boxes X and Y together. What is the mass of Box Z if Box Y is n kg?

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Mrs Tan and her two children received $5k in the ratio 2 : 3. If her son received $100 more than her daughter, how much did her daughter receive? Leave your answer in terms of k.

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James bought 4k crates of oranges. Each crate has 20 oranges. He gave away 55 oranges to his neighbour.

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- How many oranges had he left?
- If he sold the rest at 40¢ each and k = 8, how much money did he receive from the oranges sold? Give your answer in dollars.

The side of an equilateral triangle is 24k cm long. Find its perimeter.

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Find the area of the triangle.

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