exam Maths Puzzle Numerical Ability

Can someone help me on this problem?

A student got the following scores on five math tests: 91, 88, 94, 95, 85. I need to determine the range of the scores.

Thanks,
Ashley

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exam Other Question

graph the quadritic equation

y= x^2 +2x Expand log4[(3(5x - 6)2)/(3x3(x + 2)2

A 2log4(5x - 6) - 3log4(x) - 2log4(x+2)

B (2log4(15) + 2log4(x) - 2log4(18))/(log4(3) + 3log4(x) + 2log4(x) + 2)

C log445x-32- log427