exam Maths Puzzle Numerical Ability

The manager of an appliance shop uses a markup rate of 30%. The selling price of a microwave oven is $300. Find the cost of the microwave oven.

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exam Other Question

Use a special product to square the following binomial.
(2.5m - 0.4n)^2 18. Write the equation of the line passing through (-3, -7) and (-3, -6).
A) x = -3
B) y = -3
C) y = x - 3
D) y = x
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