exam Maths Puzzle Numerical Ability

A 24 cm square pyramid with a slant height of 13 cm. What is the volume and the surface area?

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exam Other Question

This is not from a texbook. How would you graph the following system of inequalities?

y<= x-3
3x+y<=1

Thanks!
graph each system of inequalities
1. y > -1/2x + 3
y =< 2/3x -2


2. y> 4x
y =<-5/2x + 4