exam Maths Puzzle Numerical Ability

4x9-3

over

7+3x(-4)
with () outside of eqution...
but outside of the () is 3/2.

For the 4x9-3
over
7+3x(-4) i got 32/-40 which simplified to 5/4...but

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exam Other Question

what would this answer be F (x)=-x^3+3x^2-a2+6 Suppose you travel north for 65 kilometers and then east for 75 kilometers. How far are you from your starting point? Can you show me step by step how to do this problem and what formula to use.