exam Maths Puzzle Numerical Ability

Two similar cylinders have heights of 3 cm and 4 cm. Find the ratio of their volumes.

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exam Other Question

i have a couple questions

what is the following answers?

(17)5x-7=2x+8
(18)2y+3=y+5
Solve each inequality. Graph the solutions.

5|2b+1|-3< 7
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the < is like 7 is greater than or equal to
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