book Maths Puzzle Numerical Ability

what is the formula to calculate 52 coins of dimes and nickels to equate $4.50?

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book Other Question

Express the inequality as an interval, and sketch its graph. -3 is = or < x < 5 Hello, I could really use your help with this question.

What is the expression for the height of a cone in terms of its radius and volume?

Thanks, Amanda