exam Maths Puzzle Numerical Ability

please help me find the measure of a circumference with its radius 5in.

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exam Other Question

Please help me solve this please
The difference of two numbers is 91. The second is 5 less than 5 times the first. What are the two numbers? Help would be appreciated

Simplify

-4^2 + (-2)^4 - 3^3 - absolute vale of -4 - 4