exam Maths Puzzle Numerical Ability

Will somebody please help me with this problem!
If we establish an identity, -sinA cscA -sin^2 A -cos^2 A -tanA cotA would equal which of the following:
1. -2 + 2sin^2 A
2. -3

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exam Other Question

Paul invested $5000 in a time deposit. What interst will he earn for 1 year if the interest rate is 6.5%?

Is the answer $325.00
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Describe the step used in transforming the given equation into the equivalent equation.

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