exam Maths Puzzle Numerical Ability

In a class of 30 studnts, there are 17 girls and 13 boys. Five are A students, and three of these students are girls. If a student is chosen at random, what is the probability of choosing a girl and a A student?

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exam Other Question

Hi Can I have some help finding the inverse function of f.
f(x) = √-6x - 4
Add the following...
6 over 3x-2 PLUS 3 over 2x