exam Maths Puzzle Numerical Ability

Factor the binomial.

25x squared - 81y squared

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exam Other Question

a stone is dropped from a cliff. In the 4 sec, the sound of the stone striking the ground reaches the top of the cliff. If we assume that the speed of sound is 1100 ft/sec, how high is the cliff? Number Problems= You have at least $30 in change in your drawer, consisting of dimes and quarters. Write an inequality that shows the diffrent number of coins in your drawer.