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Maths
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c is a positive integer. Prove that (6c^3+30c) / ( 3c^2 +15) is an even number.
Our starting equation (6c3+30c) / ( 3c2 +15) can be factorised by 6c on the top row and 3 on the bottom row so you get 6c(c2+5) / 3(c2+5). Because (c2
Amber earns £7 for each hour she works from Monday to Friday. She earns £10 for each hour she works on Saturday. One week Amber worked for 4 hours on Saturday. That week she earned a total of £180. How many hours did Amber work that week?
So to break this question down, I would highlight the key points of the question.
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She earns £7 per hour on Monday to Friday.
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She earns £10 per hour on Saturday
