exam Maths Puzzle Numerical Ability

x - 3 < -2; D = ( negative integers )

Graph on a number line

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exam Other Question

4loga(8x^4)-1/8loga(6x+7) Find the area under the normal distribution curve to the right of z= -3.24

Can I do this without a calculator? If not, how do I do it with a calculator?
Nancy