If x2 = 20, what is the value of x? ±square root of 10
±square root of 20
±10
±40

Alake near the arctic circle is covered by a sheet of ice during the cold winter months. when spring arrives, the ice starts to melt. s(t) models the ice sheet's thickness (in meters) as a function of time tt (in weeks). s(t)=-0.25t+4

The highest common factor of 132 and 220

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