exam Maths Puzzle Numerical Ability

Can you help me? I have to multiply and then be sure to simplify any radicals no using a calculator or table of square roots...

Page 535
Number 18

√10(√2 + √3)

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exam Other Question
Find the slope of the line through the points A(-1,6) and B(5,2) How do I solve this problem?
y-5>-15

What does the horizontal line mean that is between the y?
{y|y>?}